1.Definition: broadly or extravagantly humorous; resembling farce

Related Adjective(s):farcical, ludicrous

2.Definition: inspiring scornful pity

Related Adjective(s):pathetic, silly

3.Definition: so unreasonable as to invite derision

"Her conceited assumption of universal interest in her rather dull children was ridiculous"

Related Adjective(s):absurd, cockeyed, derisory, idiotic, laughable, ludicrous, nonsensical, preposterous