/ Thesaurus / P Synonyms of pessimistically Find synonyms for: Adverb1. pessimisticallyusage: with pessimism; in a pessimistic manner; "he evaluated his chances for survival rather pessimistically"WordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: simian Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language