HILARIOUS
hilarious, screaming, uproarious
(adjective) marked by or causing boisterous merriment or convulsive laughter; “hilarious broad comedy”; “a screaming farce”; “uproarious stories”
Source: WordNet® 3.1
Etymology
Adjective
hilarious (comparative more hilarious, superlative most hilarious)
Very funny; causing great merriment and laughter.
Full of hilarity; merry.
Synonyms
• See also funny
Source: Wiktionary
Hi*la"ri*ous, a. Etym: [L. hilaris, hilarus, Gr.
Definition: Mirthful; noisy; merry.
Source: Webster’s Unabridged Dictionary 1913 Edition