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Undefined vs Nullity - What's the difference?

undefined | nullity |

As an adjective undefined

is lacking a definition or value.

As a noun nullity is

the state of being null, or void, or invalid.

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

    nullity

    English

    Noun

    (nullities)
  • The state of being null, or void, or invalid.
    • nullity of marriage
  • (legal) A void act; a defective proceeding or one expressly declared by statute to be a nullity.
  • (math) The difference between the rank of a matrix and the number of columns it has; the dimension of the nullspace of a matrix.

    • Derived terms

    *decree of nullity