ridiculous vs laughable

ridiculous and laughable both are adjectives.

Word	Noun	Adjective	Verb	Adverb
ridiculous	No	Yes	No	No
laughable	No	Yes	No	No

As adjectives, ridiculous and laughable are synonyms defined as:

Other synonyms of ridiculous include absurd, cockeyed, derisory, idiotic, ludicrous, nonsensical, preposterous.

ridiculous (adjective)	laughable (adjective)
so unreasonable as to invite derision	so unreasonable as to invite derision
broadly or extravagantly humorous; resembling farce	arousing or provoking laughter
inspiring scornful pity