ridiculous vs idiotic

ridiculous and idiotic both are adjectives.

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

As adjectives, ridiculous and idiotic are synonyms defined as:

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

ridiculous (adjective)	idiotic (adjective)
so unreasonable as to invite derision	so unreasonable as to invite derision
broadly or extravagantly humorous; resembling farce	insanely irresponsible
inspiring scornful pity	having a mental age of three to seven years