farfetched vs implausible

farfetched and implausible both are adjectives.

Word	Noun	Adjective	Verb	Adverb
farfetched	No	Yes	No	No
implausible	No	Yes	No	No

farfetched (adjective)	implausible (adjective)
(of an idea or story) so exaggerated or ludicrous as to be improbable	having a quality that provokes disbelief
(of a theory or explanation) highly imaginative but unlikely and unconvincing