/ Dictionary / Index I immortal: Meaning and Definition of Find definitions for: im•mor•tal Pronunciation: (i-môr'tl), [key] — adj. not mortal; not liable or subject to death; undying: our immortal souls. remembered or celebrated through all time: the immortal words of Lincoln. not liable to perish or decay; imperishable; everlasting. perpetual; lasting; constant: an immortal enemy. of or pertaining to immortal beings or immortality. (of a laboratory-cultured cell line) capable of dividing indefinitely. —n. an immortal being. a person of enduring fame: Bach, Milton, El Greco, and other immortals. the 40 members of the French Academy. (often cap.) any of the gods of classical mythology. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: immortal (Thesaurus) immoralize immortality 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