Las‐civ″i‐ous (–ŭs), a. [L. lascivia wantonness, fr. lascivus wanton; cf. Gr. λάσταuροσ lecherous, λη̑ν to wish, Skr. lash to desire.] 1. Wanton; lewd; lustful; as, lascivious men; lascivious desires. Milton.
2. Tending to produce voluptuous or lewd emotions.
He capers nimbly in a lady's chamber
To the lascivious pleasing of a lute. Shak.
— Las‐civ″i‐ous‐ly, adv. — Las‐civ″i‐ous‐ness, n.