# implausible

/ˌɪmˈpɫɔzəbəɫ/ (US) · /ɪmplˈɔːzəbəl/ (UK) · CEFR B2 · Adjective

Source: https://englishreference.com/word/implausible
Updated: 2026-05-19

## Definition

not likely to be true or possible. You use this to describe a story or an explanation that seems very strange or hard to believe.

For teachers: unlikely to be true or possible; not credible. Often used to describe narratives, arguments, or explanations that lack sufficient evidence or logical consistency.

## Examples

- The story of a giant rabbit is implausible.
- The suspect's alibi was implausible because he claimed to be at a quiet library while the crime was happening in a busy city center.
- While the theory provides a useful framework for understanding the data, the final conclusion remains implausible given the lack of supporting evidence from the field trials.

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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.