lecherous
adjective /ˈletʃərəs/
/ˈletʃərəs/
(disapproving)- showing an unpleasant sexual interest in somebody synonym lascivious, lustfulWord OriginMiddle English: from Old French lecheros, from lecheor, from lechier ‘live in debauchery or gluttony’, ultimately of West Germanic origin and related to lick.