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WORDNET DICTIONARY

Adjective implausible has 2 senses

• implausible(a = adj.all) Array - having a quality that provokes disbelief; "gave the teacher an implausible excuse"
Derived forms noun implausibility₁, noun implausibleness₁
Antonym: plausible

• implausible(s = adj.all) farfetched - highly imaginative but unlikely; "a farfetched excuse"; "an implausible explanation"
Derived forms noun implausibility₁, noun implausibleness₁

CIDE DICTIONARY

OXFORD DICTIONARY

THESAURUS

implausible

a bit thick, a bit thin, absurd, beyond belief, debatable, doubtable, doubtful, dubious, dubitable, fishy, flimsy, hard of belief, hard to believe, hardly possible, improbable, inconceivable, incredible, more than doubtful, not deserving belief, open to doubt, open to suspicion, passing belief, preposterous, problematic, puzzling, questionable, ridiculous, staggering belief, suspect, suspicious, tall, thick, thin, unbelievable, unconvincing, unearthly, ungodly, unimaginable, unlikely, unpromising, unreasonable, unsubstantial, unthinkable, unworthy of belief, weak

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