Breadcrumb Home > Thesaurus > A Synonyms of ateleiosis Find synonyms for: Noun 1. ateleiosis, ateliosis, infantilism usage: a form of infantilism characterized by physical underdevelopment but normal intelligence WordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved.Definition and meaning of ateleiosis (Dictionary) TrendingHere are the facts and trivia that people are buzzing about. Hanukkah Origins of the Christmas Holiday Jewish Holidays, 2010-2030 (A.M. 5770-5791) Western Christian Holidays, 2010-2030 Krampus: The Christmas Devil Kwanzaa ✖ Related Content Daily Word Quiz: deleterious Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language