Breadcrumb Home > Thesaurus > I Synonyms of irresponsible Find synonyms for: Adjective 1. irresponsible (vs. responsible), carefree, devil-may-care, freewheeling, happy-go-lucky, harum-scarum, slaphappy, do-nothing(prenominal), feckless, idle, loose, trigger-happy, unaccountable, unreliable usage: showing lack of care for consequences; "behaved like an irresponsible idiot"; "hasty and irresponsible action" WordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved.Definition and meaning of irresponsible (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: panache Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language