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

But being unfunny is less Digger’s problem than a story that ties itself in knots trying to be clever, as a completely unconvincing big twist alters the picture and opens a window to a grim future. — David Rooney, HollywoodReporter, 29 Sep. 2026

Piker isn’t making El-Sayed’s unconvincing efforts to distance himself from his highly controversial pal any easier. — The Editorial Board, Chicago Tribune, 18 Sep. 2026

But United's form has been unconvincing so far this term, with just four points from three games. — ABC News, 10 Sep. 2026

The novelist and journalist Mary McCarthy, by contrast, is discussed at length, though her inclusion even in the second sense seems unconvincing. — Adam Gopnik, New Yorker, 7 Sep. 2026

Word History

First Known Use

1653, in the meaning defined above

Rhymes for unconvincing

• convincing
• evincing
• mincing
• rinsing
• wincing