say it: uhn-di-FAHYND
undefined is an adjective meaning "not precisely limited, determined, or distinguished". It carries one recorded sense.
not precisely limited, determined, or distinguished
“an undefined term”
“undefined authority”
“some undefined sense of excitement”
“vague feelings of sadness”
“a vague uneasiness”
Definitions, synonyms and semantic relations for undefined come from Princeton University’s WordNet. The pronunciation comes from the CMU Pronouncing Dictionary. Commonness is measured against a corpus of everyday English. Full sources and licences.