Synonyms for unconvincing

Most common

implausible · improbable · unlikely · unbelievable · weak · flimsy

Synonyms by meaning

Adjective

Antonyms

convincing, compelling, persuasive

All antonyms of unconvincing →

Definitions

1. adj. 1

   not convincing, plausible or believable

   Near-synonym: uncompelling

Example sentences

• unlikely I still think it's unlikely that he'll come today.
• unbelievable It's unbelievable that Tom supports that dictator.
• improbable It seemed improbable that Tom would succeed.
• implausible That Richa can read minds is implausible, to say the least.
• flimsy The flimsy cordon failed to keep back the protestors.
• tenuous Netanyahu's grip on power is tenuous.

Popularity over time

Use in printed books, per decade from 1850 to 2019.

By length

4 letters

weak¹, lame¹, limp¹

6 letters

flimsy²

7 letters

tenuous³

8 letters

unlikely³

9 letters

unweighty

10 letters

improbable⁴

11 letters

implausible⁴

12 letters

unbelievable⁵, unpersuasive, uncompelling

The small number after each word is its number of syllables (flimsy² = 2 syllables).