un ‧ con ‧ vinc ‧ ing /ˌʌnkənˈvɪnsɪŋ◂/ BrE AmE adjective
[ Word Family: adjective : ↑ convinced ≠ ↑ unconvinced , ↑ convincing ≠ ↑ unconvincing ; verb : ↑ convince ; adverb : ↑ convincingly ≠ ↑ unconvincingly ]
failing to make you believe that something is true or real:
an unconvincing smile
an unconvincing explanation
Some readers will find the arguments unconvincing.
—unconvincingly adverb