# unconvincing

/ˌənkənˈvɪnsɪŋ/ (US) · /ʌnkənvˈɪnsɪŋ/ (UK) · CEFR B2 · Adjective

Source: https://englishreference.com/word/unconvincing
Updated: 2026-10-13

## Definition

not sounding or looking true. If someone's story or performance is unconvincing, you do not believe it or feel that it is real.

For teachers: failing to inspire belief or certainty; lacking the quality of being credible or persuasive. Often describes arguments, excuses, or artistic performances that feel false.

## Examples

- His excuse for being late was very unconvincing.
- The actor gave an unconvincing performance as the villain, making it hard for the audience to take the movie seriously.
- Despite the elaborate charts and confident delivery, the CEO's explanation for the sudden drop in profits remained unconvincing to the board of directors.

## Synonyms

implausible, unbelievable, flimsy, weak, dubious

## Antonyms

convincing, persuasive, believable, credible

## Usage notes

- Commonly used both attributively before a noun and predicatively after linking verbs like 'seem', 'sound', or 'remain'.

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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.