/ Dictionary / Index L lascivious: Meaning and Definition of Find definitions for: las•civ•i•ous Pronunciation: (lu-siv'ē-us), [key] — adj. inclined to lustfulness; wanton; lewd: a lascivious, girl-chasing old man. arousing sexual desire: lascivious photographs. indicating sexual interest or expressive of lust or lewdness: a lascivious gesture. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: lascivious (Thesaurus) Lascaux Cave Las Cruces Related Content Daily Word Quiz: menagerie Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language