/ Thesaurus / S Synonyms of second thought Find synonyms for: Noun1. reconsideration, second thought, afterthought, rethink, reversal, change of mind, flip-flop, turnabout, turnaroundusage: thinking again about a choice previously made; "he had second thoughts about his purchase"WordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: acerbity Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language