Implausible

adj

adj ·4 syllables ·Uncommon ·Advanced level

Definitions

Adjective
  1. 1
    Not plausible; unlikely; dubious.

    "Harper finds the idea that Latin developed into the modern Romance languages too implausible to believe."

Adjective
  1. 1
    having a quality that provokes disbelief wordnet

Synonyms

All synonyms
unbelievablea bit thicka bit thinabsurdbeyond beliefcockamamie

Example

More examples

"Sadly many people will believe things told to them via an email which they would find implausible face-to-face."

Etymology

From im- + plausible.

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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.