The meaning of UNDEFINED is not defined. How to use undefined in a sentence.

UNDEFINED definition: 1. not clearly described, stated, or known: 2. not having been given a definition (= a statement…. Learn more.

Undefined definition: without fixed limits; indefinite in form, extent, or application.. See examples of UNDEFINED used in a sentence.

Jul 8, 2025 · A variable that has not been assigned a value is of type undefined. A method or statement also returns undefined if the variable that is being evaluated does not have an …

Look up undefined in Wiktionary, the free dictionary.

1. not defined or explained. 2. indefinite in form or extent: an undefined feeling of sadness.

Definition of 'undefined' undefined in British English (ˌʌndɪˈfaɪnd ) adjective not defined or made clear

Definition of undefined adjective in Oxford Advanced Learner's Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.

Nov 1, 2025 · (mathematics, computing) That does not have a meaning and is thus not assigned an interpretation. The result of division by zero is undefined.

UNDEFINED meaning: 1. not clearly described, stated, or known: 2. not having been given a definition (= a statement…. Learn more.