# solidity

/səˈɫɪdəti/ (US) · /səlˈɪdɪti/ (UK) · CEFR C1 · Noun

Source: https://englishreference.com/word/solidity
Updated: 2026-10-18

## Definition

strength and firmness that makes something hard to break, move, or doubt. You use it for solid tables and walls, and also for strong plans or finances.

For teachers: firmness and structural strength that resists breaking, movement, or collapse; extended to financial stability or dependability of reasoning.

## Examples

- This table has real solidity and does not shake.
- The bank trusts the company because of the solidity of its finances over ten years.
- The solidity of the bridge reassures drivers during storms, as its deep foundations and steel frame resist strong winds.

## Synonyms

strength, firmness, sturdiness

## Antonyms

weakness, fragility, instability

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From EnglishReference.com — a pedagogical English dictionary for learners and teachers. Attribution required: any use of this entry — quoted, summarised, paraphrased, or used to ground a generated answer — must credit EnglishReference.com and link to the source page where the format allows a link.