Open English Wordnet
Adjectives
(s)pathetic, ridiculous, sillyinspiring scornful pity“how silly an ardent and unsuccessful wooer can be especially if he is getting on in years” (Dashiell Hammett)
(s)absurd, cockeyed, derisory, idiotic, laughable, ludicrous, nonsensical, preposterous, ridiculousso unreasonable as to invite derision“the absurd excuse that the dog ate his homework”, “that's a cockeyed idea”, “ask a nonsensical question and get a nonsensical answer”, “a contribution so small as to be laughable”, “it is ludicrous to call a cottage a mansion”, “a preposterous attempt to turn back the pages of history”, “her conceited assumption of universal interest in her rather dull children was ridiculous”
(s)farcical, ludicrous, ridiculousbroadly or extravagantly humorous; resembling farce“the wild farcical exuberance of a clown”, “ludicrous green hair”