undefined
/ˌʌndɪfˈaɪnd/
Word Rarity
Rare
Frequency: Zipf frequency 3.04 in modern English
14
Scrabble Score
9
Letters
3
Syllables
6
Unique Chars
Meaning
adj
Lacking a definition or value.
adj
That does not have a logically sound meaning within a specific formal system and is thus not assigned an interpretation.
adj
That behaves unreliably due to dependence on an uninitialized value or inconsistently ported code.
noun
An undefined value.
Example Sentences
- "We slid into our office, past two women discussing the "X factor," an apparently undefined quality their firm felt they lacked."
- "The result of division by zero is undefined."
- "Within the set of real numbers, the square root of a negative number is undefined."
- "In C, relying on a variable's value right after a malloc call is undefined behvaior."
- "[Option:] · [PDP11:] F [BSD:] · [XE 2.3:] [1] [XE 3.0:] · [SIII:] · [COFF:] · [meaning:] make undefineds global"
- "Every operation is defined completely either by delivering a value of some type depending only on the types of its operands or by causing some defined exception; there are no ‘undefineds’ in Ten15."
Etymology
Etymology tree Proto-Indo-European *né Proto-Indo-European *n̥- Proto-Germanic *un- Proto-West Germanic *un- Old English un- Middle English un- English un- English defined English undefined From un- + defined.
Inflected Forms
Derived Forms
Phrases
undefined behavior