/ Dictionary / Index L louche: Meaning and Definition of Find definitions for: louche Pronunciation: (lsh), [key] — adj. dubious; shady; disreputable. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: louche (Thesaurus) Louangphrabang loud Related Content Daily Word Quiz: arboreal Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language