undef

Fetched 2026-10-26 (cache).

Synonyms: under, unde, indef, unef, undeaf, undof, ndef, undee, undex, unded, unref

Antonyms: under, unde, indef, unef, undeaf, undof, ndef, undee, undex, unded, unref

Related words from Datamuse; suggestions, not definitions.

Adjective

1. {{lb|en|programming}} {{abbreviation of|en|undefined}}.

Source: Wiktionary · CC BY-SA 4.0 (Wiktionary dump) · cached copy, not a rewrite.