/ Thesaurus / I Synonyms of incapableness Find synonyms for: Noun1. incapability, incapableness, inaptitudeusage: lack of potential for development2. incapability, incapableness, inability, unfitnessusage: the quality of not being capable -- physically or intellectually or legallyWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: gregarious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language