Breadcrumb Home > Thesaurus > S Synonyms of spontaneity Find synonyms for: Noun 1. spontaneity, spontaneousness, naturalness usage: the quality of being spontaneous and coming from natural feelings without constraint; "the spontaneity of his laughter" WordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved.Definition and meaning of spontaneity (Dictionary) TrendingHere are the facts and trivia that people are buzzing about. Chinese New Year History, Meaning, and Celebrations Current Events This Week: February 2024 Valentine's Day Valentine's Day History Mardi Gras 30 "Charlie and the Chocolate Factory" Quotes ✖ Related Content Daily Word Quiz: pernicious Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language