/ Dictionary / Index S supportable: Meaning and Definition of Find definitions for: sup•port•a•ble Pronunciation: (su-pôr'tu-bul, -pōr'-), [key] — adj. capable of being supported; endurable; maintainable. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: supportable (Thesaurus) support supporter Related Content Daily Word Quiz: neologism Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language