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Dictionary-enhanced synonyms

Synonyms for “Solid” — 4 Other Ways to Say It

Something that is hard and keeps its shape.

IPA: /ˈsɒlɪd/Level: A2Register: neutralPart of speech: adj

Meaning of Solid

Firm and hard; not liquid or gas.

How to Pronounce Solid

IPA: /ˈsɒlɪd/ Stress: Oo

Stress on first syllable: SOL-id. Make the final 'd' clear.

Full pronunciation guide for solid →

4 Synonyms for Solid — Words Similar to Solid

Browse alternative words with their meaning, level, and a real example sentence so you pick the synonym that fits your context.

firm

/fɜːrm/
adj A2

Hard or solid; not moving or changing easily; maintaining its shape under pressure.

Example: The mattress is very firm and supports my back well.

hard

/hɑːrd/
adj A1

Something that is not soft and is difficult to break or change shape.

Example: The stone is very hard and will not break easily.

Smart Synonyms for Solid — When to Use Each

firm

for describing consistent quality or resolve

hard

for physical properties that resist pressure

How to Use Solid and Its Synonyms in Sentences

  • Ice is solid water. A1
  • The bridge is built on solid rock. A2
  • He has a solid academic foundation in mathematics. B1

Frequently Asked Questions About Synonyms of Solid

What is another word for "solid"?

Common synonyms for "solid" include: firm, hard, rigid, compact.

What can I say instead of "solid"?

Try one of these alternatives: firm, hard, rigid, compact. Pick the synonym whose register and meaning fits your sentence — see the cards above for definitions and examples.

Is "solid" formal or informal?

"solid" is generally used in neutral contexts.

When should I use "solid" instead of "firm"?

Use "solid" when you want to keep the exact nuance shown in the meaning section above; switch to "firm" when you need a different register, level, or shade of meaning. Compare the cards above to decide.

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