underdrawers vs drawers

underdrawers and drawers both are nouns.

Word	Noun	Adjective	Verb	Adverb
underdrawers	Yes	No	No	No
drawers	Yes	No	No	No

As nouns, underdrawers and drawers are synonyms defined as:

Other synonyms of underdrawers include boxers, boxershorts, shorts.

underdrawers (noun)	drawers (noun)
underpants worn by men	(used in the plural) underpants worn by women
	underpants worn by men