Breadcrumb Home > Thesaurus > P Synonyms of pernickety Find synonyms for: Adjective 1. pernickety, persnickety, fastidious (vs. unfastidious) usage: characterized by excessive precision and attention to trivial details; "a persnickety job"; "a persnickety school teacher" WordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved.Definition and meaning of pernickety (Dictionary) TrendingHere are the facts and trivia that people are buzzing about. Jewish Holidays, 2010-2030 (A.M. 5770-5791) Western Christian Holidays, 2010-2030 12 Steps to a New Year New Year's Resolution to Slim Down? Martin Luther King Speeches Books of the Bible: Old Testament Books in Order ✖ Related Content Daily Word Quiz: recidivism Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language