Quick answer: Common synonyms of hollow include empty, vacant, concave, sunken, cavernous, insincere, meaningless, shallow, echoing, and depressed.
“Hollow” is a flexible English word because its meaning changes with context. It can describe something empty inside, a sunken shape, an emotionless statement, or even a deep, echoing sound.
For example, “The tree was hollow inside” means its center was empty. However, “His apology sounded hollow” means the apology seemed insincere or lacking real feeling.
Learning synonyms of hollow helps students, writers, bloggers, and English learners choose more exact words. It also makes essays, articles, emails, and everyday conversations clearer, more natural, and less repetitive.
What Does Hollow Mean?
Hollow usually means having an empty space inside, but it has several related meanings.
It may describe a physical object, such as a hollow pipe; a sunken appearance, such as hollow cheeks; or words and emotions that seem false or without substance.
Examples:
- The old tree was hollow in the middle.
- His eyes looked hollow after several sleepless nights.
- Her promises sounded hollow after repeated delays.
Because the meaning changes with context, the best synonym also changes.
Best Synonyms of Hollow
Some alternatives describe an object that is empty inside, while others refer to a sunken shape, weak emotion, meaningless speech, or a deep sound. Choosing the right synonym depends on the sense of hollow you intend.
1. Empty
Meaning: Having nothing inside.
Example: The empty container rolled across the floor.
2. Vacant
Meaning: Not filled, occupied, or being used.
Example: Several vacant rooms were available upstairs.
3. Unfilled
Meaning: Not containing anything in a space intended to be filled.
Example: The unfilled cavity was clearly visible.
4. Void
Meaning: Completely empty or lacking content.
Example: The chamber appeared dark and void.
5. Cavernous
Meaning: Extremely large, deep, and hollow like a cave.
Example: They entered a cavernous hall with high ceilings.
6. Concave
Meaning: Curving inward rather than outward.
Example: The bowl had a smooth concave surface.
7. Sunken
Meaning: Lower or deeper than the surrounding surface.
Example: His sunken cheeks made him look exhausted.
8. Indented
Meaning: Pressed inward to form a small hollow.
Example: The metal panel was indented after the impact.
9. Recessed
Meaning: Set back or positioned deeper than the surrounding area.
Example: The room had recessed shelves built into the wall.
10. Depressed
Meaning: Lower than the surface around it.
Example: Rainwater collected in the depressed area of the field.
11. Dented
Meaning: Having a small hollow caused by pressure or impact.
Example: The dented door needed to be repaired.
12. Pitted
Meaning: Covered with small hollows or depressions.
Example: Years of weather left the stone surface pitted.
13. Grooved
Meaning: Marked with narrow hollow channels.
Example: The grooved surface helped water drain away.
14. Scooped
Meaning: Shaped into a hollow by removing material.
Example: She placed the filling inside the scooped pumpkin.
15. Excavated
Meaning: Dug out to create an empty or hollow space.
Example: Archaeologists examined the excavated chamber.
16. Insincere
Meaning: Not expressing genuine feelings or intentions.
Example: His insincere apology convinced nobody.
17. Meaningless
Meaning: Having little or no real meaning or value.
Example: Without action, the promise became meaningless.
18. Empty-Hearted
Meaning: Lacking genuine emotion or compassion.
Example: The speech felt empty-hearted despite its dramatic language.
19. Shallow
Meaning: Lacking emotional, intellectual, or serious depth.
Example: The discussion remained shallow and unconvincing.
20. Superficial
Meaning: Concerned only with the surface rather than deeper meaning.
Example: Their agreement was superficial and quickly collapsed.
21. False
Meaning: Not genuine, truthful, or sincere.
Example: His false praise made everyone uncomfortable.
22. Fake
Meaning: Made to appear genuine when it is not.
Example: Her fake enthusiasm was easy to notice.
23. Feigned
Meaning: Pretended rather than sincerely felt.
Example: He showed feigned surprise when the result was announced.
24. Artificial
Meaning: Lacking naturalness or genuine feeling.
Example: The conversation sounded artificial and rehearsed.
25. Pretended
Meaning: Presented as real although it is not sincere.
Example: Her pretended concern did little to reassure him.
26. Vain
Meaning: Producing no meaningful result or effect.
Example: Their efforts to stop the leak were vain.
27. Worthless
Meaning: Having no real value or usefulness.
Example: Without evidence, the guarantee seemed worthless.
28. Pointless
Meaning: Having no useful purpose or meaning.
Example: Continuing the argument felt pointless.
29. Baseless
Meaning: Having no proper foundation, evidence, or support.
Example: The accusation proved completely baseless.
30. Substance-Free
Meaning: Lacking meaningful content or real value.
Example: Critics dismissed the proposal as substance-free rhetoric.
31. Echoing
Meaning: Producing sounds that repeat within an empty space.
Example: Their footsteps were echoing through the corridor.
32. Resonant
Meaning: Producing a deep, full, reverberating sound.
Example: A resonant knock came from inside the wooden box.
33. Booming
Meaning: Producing a deep and powerful sound.
Example: His booming voice filled the empty hall.
34. Reverberant
Meaning: Characterized by repeated echoes.
Example: The tunnel had a strongly reverberant sound.
35. Muffled
Meaning: Sounding dull or unclear because sound is partly blocked.
Example: A muffled thump came from behind the wall.
36. Dull
Meaning: Producing a flat sound without sharp resonance.
Example: The wall gave a dull sound when he tapped it.
37. Boomy
Meaning: Producing an excessively deep or resonant sound.
Example: The empty room made the speakers sound boomy.
38. Cavity
Meaning: An empty space inside a solid object or body.
Example: Water collected inside the cavity in the rock.
39. Hole
Meaning: An opening or empty space in a surface or object.
Example: A small hole had formed inside the tree trunk.
40. Pit
Meaning: A deep hollow or depression in the ground.
Example: Workers carefully climbed into the pit.
41. Depression
Meaning: A sunken or lower area in a surface.
Example: Water gathered in a shallow depression beside the path.
42. Hollowing
Meaning: The process of creating an empty or sunken space.
Example: Natural erosion caused gradual hollowing of the cliff.
43. Basin
Meaning: A naturally or artificially formed hollow area.
Example: Rainwater collected in the rocky basin.
44. Trough
Meaning: A long, narrow hollow or depression.
Example: The animals drank from a stone trough.
45. Dip
Meaning: A place where a surface slopes downward.
Example: The road disappeared briefly into a dip.
46. Dell
Meaning: A small, sheltered hollow in the landscape.
Example: Wildflowers covered the quiet dell.
47. Valley
Meaning: A low area of land between hills or mountains.
Example: A narrow valley stretched beyond the forest.
48. Ravine
Meaning: A deep, narrow hollow formed by running water.
Example: A stream flowed through the rocky ravine.
49. Scoop Out
Meaning: To remove material and create a hollow space.
Example: Scoop out the center of the melon carefully.
50. Carve Out
Meaning: To cut away material to form an empty space.
Example: The craftsman carved out the center of the wooden bowl.
Synonyms of Hollow for Empty Objects
When hollow means empty inside, the most natural choices include empty, vacant, unfilled, cavernous, and void.
For example, “a hollow container” may sometimes be described as an empty container, while a very large hollow interior might be called cavernous.
The words are not always interchangeable. “Vacant,” for instance, works especially well for buildings, rooms, positions, or spaces that are currently unoccupied.
Synonyms of Hollow for Sunken Shapes
When describing an inward curve or depression, useful alternatives include concave, sunken, indented, recessed, dented, depressed, and pitted.
A person may have sunken cheeks, while a surface may be concave or indented. Choosing the specific word makes the physical description more accurate.
Synonyms of Hollow for Feelings and Words
When hollow describes words, emotions, or promises that lack sincerity or substance, good alternatives include insincere, meaningless, false, superficial, fake, feigned, and artificial.
For example:
“His promise sounded hollow” can become “His promise sounded insincere.”
Here, “empty” is possible figuratively, but insincere communicates the intended meaning more precisely.
Hollow vs. Similar Words
| Word | Meaning | Best Used For |
|---|---|---|
| Hollow | Empty inside or lacking substance | General physical and figurative uses |
| Empty | Containing nothing | Containers and spaces |
| Concave | Curved inward | Shapes and surfaces |
| Sunken | Lower than the surrounding area | Eyes, cheeks, ground, surfaces |
| Insincere | Not expressing genuine feeling | Apologies, praise, promises |
| Cavernous | Very large and hollow | Rooms, buildings, spaces |
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Frequently Asked Questions
What is another word for hollow?
Common alternatives include empty, vacant, concave, sunken, cavernous, and insincere, depending on the context.
What is a synonym for hollow meaning empty?
Empty is the simplest option, while vacant, unfilled, cavernous, and void may work in more specific situations.
What is a synonym for a hollow feeling or statement?
Words such as insincere, meaningless, superficial, false, and empty can describe statements or emotions lacking genuine substance.
What is the difference between hollow and empty?
Empty usually means containing nothing, while hollow often means having an empty space inside something whose exterior remains intact.
Can concave be a synonym for hollow?
Yes, when hollow describes a surface or shape that curves inward. It cannot normally replace hollow when referring to insincerity or emptiness inside an object.
Conclusion
Learning synonyms of hollow makes it easier to describe objects, shapes, sounds, emotions, and statements with greater precision.
Instead of relying on one general word, you can choose alternatives such as empty, concave, sunken, cavernous, or insincere according to the situation.
Using precise vocabulary also makes your writing and speech more natural and engaging. Practice these words in essays, emails, blog posts, descriptions, and everyday conversations to strengthen both your vocabulary and communication skills.
I am Abubakar, an educator and content writer with a Master’s degree in English Language. I write about English language, vocabulary, and educational topics, simplifying complex concepts for everyday readers. Alongside my passion for teaching and learning, I focus on creating helpful and engaging content that improves knowledge, communication skills, and language understanding.
