Immortal and Unknown

Opposite meaning words

Immortal adjective - Lasting forever.

Show all Definitions

Unknown is an antonym for immortal in topics: famous, death-defying.

Unknown adjective - Happening or existing without one's knowledge.

Show all Definitions

Immortal is an antonym for unknown.

Nearby Words: unknowable, unknowing

Humanoid Abomination: "Fisher." An unknown salesman whose real name is unknown, eats children so he can feed on their dreams, is immortal and has razor sharp teeth.

Source: Comicbook / Severed
It's unknown if the Gargoyles as a species were this type of immortal or if it's unique to Tyrania.

Source: Fan Fic / The Legend of Spyro: A New Dawn
It is unknown what happens if a human child is turned into an immortal species.

Source: Immortality Begins at 20

Cite this Source

Unknown and Immortal. (2016). Retrieved 2026, July 21, from https://thesaurus.plus/related/immortal/unknown

Immortal & Unknown. N.p., 2016. Web. 21 Jul. 2026. <https://thesaurus.plus/related/immortal/unknown>.

Unknown or Immortal. 2016. Accessed July 21, 2026. https://thesaurus.plus/related/immortal/unknown.

Google Ngram Viewer shows how "immortal" and "unknown" have occurred on timeline