B2 adjective /ˌʌnkənˈvɪnsɪŋ/
Unconvincing
अविश्वसनीय
Meaning
failing to persuade or impress; not believable or credible
Example
His excuse for being late was completely unconvincing.
उसका देर होने का बहाना पूरी तरह से अविश्वसनीय था।