/ Dictionary / Index I indeterminable: Meaning and Definition of Find definitions for: in•de•ter•mi•na•ble Pronunciation: (in"di-tûr'mu-nu-bul), [key] — adj. not determinable; incapable of being ascertained. incapable of being decided or settled. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: indeterminable (Thesaurus) indestructible indeterminacy Related Content Daily Word Quiz: spectral Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language