ri·dic·u·lous
/rɪˈdɪkyələs/ Show Spelled[ri-dik-yuh-luhs] Show IPA
–adjective
causing or worthy of ridicule or derision; absurd; preposterous; laughable: a ridiculous plan.
Use ridiculous in a Sentence 
SWANNY IS BEING RIDICULOUS!!!
AND NOW SO AM I!!! HMMMMM...SOMETHINGS GOIN ON!!!
Origin:
1540–50; < LL rīdiculōsus laughable, droll, and L rīdiculus (adj. deriv. of rīdiculum ridicule); see -ous
—Related forms
ri·dic·u·lous·ly, adverb
ri·dic·u·lous·ness, ri·dic·u·los·i·ty /rɪˌdɪkyəˈlɒsɪti/ Show Spelled[ri-dik-yuh-los-i-tee] Show IPA, noun
hy·per·ri·dic·u·lous, adjective
hy·per·ri·dic·u·lous·ly, adverb
hy·per·ri·dic·u·lous·ness, noun
qua·si-ri·dic·u·lous, adjective
qua·si-ri·dic·u·lous·ly, adverb
un·ri·dic·u·lous, adjective
un·ri·dic·u·lous·ly, adverb
un·ri·dic·u·lous·ness, noun
—Synonyms
nonsensical, ludicrous, funny, droll, comical, farcical. See absurd.
—Antonyms
sensible.