drunken revelry vs bacchanal

drunken revelry and bacchanal both are nouns.

Word	Noun	Adjective	Verb	Adverb
drunken revelry	Yes	No	No	No
bacchanal	Yes	Yes	No	No

As nouns, drunken revelry and bacchanal are synonyms defined as:

drunken revelry and bacchanal: a wild gathering involving excessive drinking and promiscuity

Other synonyms of drunken revelry include bacchanalia, debauch, debauchery, orgy, riot, saturnalia.

drunken revelry (noun)	bacchanal (noun)
a wild gathering involving excessive drinking and promiscuity	a wild gathering involving excessive drinking and promiscuity
	someone who engages in drinking bouts
	a drunken reveller; a devotee of Bacchus

drunken revelry (adjective)	bacchanal (adjective)
	used of riotously drunken merrymaking