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Extinct vs Undefined - What's the difference?

extinct | undefined |

As adjectives the difference between extinct and undefined

is that extinct is (dated) extinguished, no longer alight (of fire, candles etc) while undefined is lacking a definition or value.

extinct

English

Adjective

(en adjective)
  • (dated) Extinguished, no longer alight (of fire, candles etc.)
    • Poor Edward's cigarillo was already extinct .
  • No longer used; obsolete, discontinued.
  • * Luckily, such ideas about race are extinct in current sociological theory.
  • *
    • Indeed the very fact that the English spelling system
    writes in there'' as two words but ''therein'' as one word might be taken as suggest-
    ing that only the former is a productive syntactic construction in Modern
    English, the latter being a now extinct construction which has left behind a
    few fossil remnants in the form of compound words such as ''thereby     .
  • No longer in existence; having died out.
    • The dinosaurs have been extinct for millions of years.
  • (vulcanology) No longer actively erupting.
    • Most of the volcanos on this island are now extinct .

    Synonyms

    * dead

    Antonyms

    * (no longer alight) burning * (having died out) extant * active, dormant

    Related terms

    * extinction * extinctive * extinguish

    External links

    * *

    undefined

    English

    Adjective

    (wikipedia undefined) (-)
  • Lacking a definition or value.
  • (mathematics, computing) That does not have a meaning and is thus not assigned an interpretation.
    • The result of division by zero is undefined .

    Antonyms

    * defined