underhand vs corrupt

underhand and corrupt both are adjectives.

Word	Noun	Adjective	Verb	Adverb
underhand	No	Yes	No	Yes
corrupt	No	Yes	Yes	No

underhand (adjective)	corrupt (adjective)
with hand brought forward and up from below shoulder level	lacking in integrity
marked by deception	not straight; dishonest or immoral or evasive
	containing errors or alterations
	touched by rot or decay

underhand (verb)	corrupt (verb)
	alter from the original
	place under suspicion or cast doubt upon
	make illegal payments to in exchange for favors or influence
	corrupt morally or by intemperance or sensuality

underhand (adverb)	corrupt (adverb)
with the hand swung below shoulder level
slyly and secretly