From Longman Dictionary of Contemporary Englishlecherouslech‧er‧ous /ˈletʃərəs/ adjective SEX/HAVE SEX WITHa lecherous man shows his sexual desire for women in a way that is unpleasant or annoying a lecherous old man —lecherously adverb
Examples from the Corpus
lecherous• He was as lecherous as always, telling rude jokes and trying to kiss all the girls.• Her driving instructor was a disgusting lecherous old devil -- always touching her knee. 