# demonstrable

/ˈdɛmənstɹəbəɫ/ (US) · /dˈɛmənstɹəbəl/ (UK) · CEFR C1 · Adjective

Source: https://englishreference.com/word/demonstrable
Updated: 2026-10-16

## Definition

able to be shown or proved with clear facts or examples. You use it when you can point to real proof that something is true.

For teachers: capable of being shown or proved by evidence, reasoning, or example. Often modifies abstract nouns such as effect, improvement, or progress.

## Examples

- The new plan shows demonstrable benefits for busy families.
- The training program produced demonstrable improvements in staff confidence within three months.
- Despite persuasive rhetoric, the policy lacked demonstrable results, leaving analysts to question whether its promised economic gains would ever materialize beyond projections.

## Synonyms

verifiable, provable

## Antonyms

unprovable, unverifiable

## Usage notes

- Typically placed before the noun it modifies; also used predicatively after 'be'.

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