ridiculous vs nonsensical

ridiculous and nonsensical both are adjectives.

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

As adjectives, ridiculous and nonsensical are synonyms defined as:

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

ridiculous (adjective)	nonsensical (adjective)
so unreasonable as to invite derision	so unreasonable as to invite derision
broadly or extravagantly humorous; resembling farce	having no intelligible meaning
inspiring scornful pity