/ Thesaurus / P Synonyms of plainness Find synonyms for: Noun1. plainness, purity, purenessusage: the state of being unmixed with other material; "the plainness of vanilla ice cream"2. perspicuity, perspicuousness, plainness, clarity, lucidity, lucidness, pellucidity, clearness, limpidityusage: clarity as a consequence of being perspicuous3. plainness, appearance, visual aspectusage: the appearance of being plain and unpretentious4. homeliness, plainness, appearance, visual aspectusage: an appearance that is not attractive or beautiful; "fine clothes could not conceal the girl's homeliness"WordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: bibliophile Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language