/ Thesaurus / S Synonyms of sga infant Find synonyms for: Noun1. small-for-gestational-age infant, SGA infant, neonate, newborn, newborn infant, newborn babyusage: an infant whose size and weight are considerably less than the average for babies of the same ageWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: knead Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language