/ Thesaurus / W Synonyms of wantonly Find synonyms for: Adverb1. wantonlyusage: in a wanton manner; "the animals were killed wantonly for sport"2. licentiously, wantonly, promiscuouslyusage: in a licentious and promiscuous manner; "this young girl has to share a room with her mother who lives promiscuously"WordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: pudgy Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language