unconvincing
/ˌʌnkənˈvɪnsɪŋ/
adjective
- Not seeming true or real; failing to persuade someone that something is true or correct.
- The actor's performance was unconvincing, and the audience didn't believe his emotions.
- His excuse for being late was unconvincing, so the teacher asked for a note.
- She gave an unconvincing smile, trying to hide her disappointment.
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