caprice cap·rice UK/kəˈpɹiːs/ US/kʌˈpris/ uncommon noun 1. a sudden desire “he bought it on an impulse” Synonymsimpulsewhim Related words Broader terms desire WordNet 2.1 (Princeton University). Wiktionary (CC BY-SA). CMU Pronouncing Dictionary. WordNet 2.1 Copyright Princeton University. All rights reserved.