Breadcrumb Home > Thesaurus > W Synonyms of whimsical Find synonyms for: Adjective1. capricious, impulsive, whimsical, arbitrary (vs. nonarbitrary)usage: determined by chance or impulse or whim rather than by necessity or reason; "a capricious refusal"; "authoritarian rulers are frequently capricious"; "the victim of whimsical persecutions"WordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved.Definition and meaning of whimsical (Dictionary) ✖ Related Content Daily Word Quiz: legerdemain Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language