unconvincing

adjective

un·​con·​vinc·​ing ˌən-kən-ˈvin(t)-siŋ 

: not convincing : implausible

an unconvincing argument

unconvincingly

ˌən-kən-ˈvin(t)-siŋ-lē 

adverb

unconvincingness noun

Synonyms of unconvincing

• incredulous
• incredible
• unlikely
• implausible
• impossible
• questionable
• ridiculous
• unbelievable
• absurd

Examples of unconvincing in a Sentence

His arguments for changing the rules were unconvincing.

a novel with unconvincing characters

Recent Examples on the Web

That flank hasn’t been nailed down by anyone in recent times, with Rodrygo suffering an ACL injury, Franco Mastantuono unconvincing, and Arda Guler drifting further into the middle. —Tom Sanderson, Forbes.com, 11 June 2026

But sometimes Fiedler is downright unconvincing. —Becca Rothfeld, New Yorker, 1 June 2026

An unconvincing 3-2 victory had the feeling of a miscalculation, especially when Newcastle succumbed late again the following weekend by losing 3-2 at home to Everton. —George Caulkin, New York Times, 25 May 2026

Despite engaging performances, though, the characters’ motivations don’t always ring true, leading to some frustrating and unconvincing plot developments. —Emily McClanathan, Chicago Tribune, 14 May 2026

Word History

First Known Use

1653, in the meaning defined above

Rhymes for unconvincing

• convincing
• evincing
• mincing
• rinsing
• wincing