immortal

UK: /ɪˈmɔː^rt^əl/ US: /ɪˈmɔrtəl/ ,(i môr′tl)

WordReference Random House Learner's Dictionary of American English © 2025

im•mor•tal /ɪˈmɔrtəl/   adj. 

1. not mortal;
   not liable or subject to death:
   immortal souls.
2. that will not decay;
   everlasting:
   immortal wisdom.
3. perpetual;
   constant:
   an immortal enemy.

n. [countable]

4. an immortal being:
   "I want to be an immortal and live forever,'' she exclaimed.
5. a person of long-lasting fame:
   one of baseball's immortals.

im•mor•tal•ly, adv. See -mort-.

WordReference Random House Unabridged Dictionary of American English © 2025

im•mor•tal  (i môr′tl), adj. 

1. not mortal;
   not liable or subject to death;
   undying:
   our immortal souls.
2. remembered or celebrated through all time:
   the immortal words of Lincoln.
3. not liable to perish or decay;
   imperishable;
   everlasting.
4. perpetual;
   lasting;
   constant:
   an immortal enemy.
5. of or pertaining to immortal beings or immortality.
6. (of a laboratory-cultured cell line) capable of dividing indefinitely.

n. 

7. an immortal being.
8. a person of enduring fame:
   Bach, Milton, El Greco, and other immortals.
9. the Immortals, the 40 members of the French Academy.
10. (often cap.) any of the gods of classical mythology.

• Latin immortālis. See im-², mortal
• Middle English (adjective, adjectival) 1325–75

im•mor′tal•ly, adv. 
Synonyms

• 8. giant, titan, genius.

Collins Concise English Dictionary © HarperCollins Publishers::

immortal / ɪˈmɔːt^əl/ adjective

1. not subject to death or decay; having perpetual life
2. having everlasting fame; remembered throughout time
3. everlasting; perpetual; constant
4. of or relating to immortal beings or concepts

noun

1. an immortal being
2. (often plural) a person who is remembered enduringly, esp an author

ˌimmorˈtality noun

imˈmortally adverb