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

Cruise sports a thick Southern accent, a beer belly and thinning white hair (fashioned in an unconvincing combover) to play the oil baron whose company may have set off an ecological disaster that could also spark a nuclear war. — Jazz Tangcay, Variety, 23 June 2026

On the other hand, West Germany had scraped through to the final with some unconvincing performances, including a loss to East Germany earlier in the competition. — Tushaar Kuthiala, Encyclopedia Britannica, 22 June 2026

Chris Waugh This is not the first time that one of the tournament favourites has looked unconvincing in their first World Cup game. — Tim Spiers, New York Times, 17 June 2026

Yet success can become strangely unconvincing in midlife. — Cheryl Robinson, Forbes.com, 13 June 2026

Word History

First Known Use

1653, in the meaning defined above

Rhymes for unconvincing

• convincing
• evincing
• mincing
• rinsing
• wincing