/ Thesaurus / H Synonyms of hook line and sinker Find synonyms for: Adverb1. hook line and sinkerusage: in every detail; "he believed her story hook, line, and sinker"WordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: rustic Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language