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Unless vs Undefined - What's the difference?

unless | undefined |

As a conjunction unless

is except on a specified condition; if not.

As an adjective undefined is

lacking a definition or value.

unless

English

Alternative forms

* unlesse (obsolete)

Conjunction

(English Conjunctions)
  • Except on a specified condition; if not.
    • I’m leaving unless I get a pay rise (AmE: raise).
  • *
  • * 1839 , Denison Olmsted, A Compendium of Astronomy Page 95
    • Secondly, When a body is once in motion it will continue to move forever, unless something stops it. When a ball is struck on the surface of the earth, the friction of the earth and the resistance of the air soon stop its motion.

    Antonyms

    * (except on a condition) if

    Derived terms

    * precisely unless * unlesss * unless and until, until and unless

    Statistics

    *

    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