Filled with or showing sexual desire.
1) He was arrested for lewd and lascivious behaviour.
2) He was fired for making lascivious remarks to a co-worker
Middle English, from Old Latin lasciviosus, from Latin lascivia.
bawdy, blue, coarse, obscene, filthy, vulgar, indecent, lewd
clean, decent, G-rated, nonobscene, wholesome.