Characterized by or subject to whim; impulsive and unpredictable. See Synonyms at arbitrary.(adjective)
American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Use "capricious" in a sentence
"I have just left Augereau, who was vomiting fire and fury against what he calls your capricious proclamations."
"Woman is less changeable, but to call her capricious is a stupid insult."
"One of Trine's would-be selling points is its physics-based puzzles, but history has taught us by now that "physics-based" is often a euphemism for "capricious" - and that's the case here."