/ Thesaurus / I Synonyms of inattentiveness Find synonyms for: Noun1. inattentiveness, heedlessness, inattentionusage: a lack of attentiveness (as to children or helpless people)2. inattentiveness, traitusage: the trait of not being considerate and thoughtful of othersWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: penury Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language