Breadcrumb Home > Thesaurus > N Synonyms of noumenon Find synonyms for: Noun 1. noumenon, thing-in-itself, content, cognitive content, mental object usage: the intellectual conception of a thing as it is in itself, not as it is known through perception WordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved.Definition and meaning of noumenon (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: hortatory Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language