Synonyms & related words for undefined

Find synonyms, related words, and the definition of undefined — including vague, indefinite, indeterminate, undetermined, indefinable, unspecified. Dendril is a free visual thesaurus that shows them on an interactive map where stronger matches sit closer to the center — no signup, no ads.

Words related to undefined

Explore words related to undefined — words associated with it, words that go with it, and its nearest matches in meaning. Related words include undefinable, indefinability, indeterminateness, ambiguous, indefinably, indeterminately, nebulous, nebulousness. Click any word to make it the center of the map and keep exploring the web of connections.

Synonyms for undefined

Common synonyms for undefined include vague, indefinite, indeterminate, undetermined, indefinable, unspecified, indeterminable, unclear — words that share a close meaning. Hover or tap any word on the map for its definition and part of speech.

Where does undefined come from?

The word undefined breaks down into 2 roots of Old English and Latin origin: un-, from Old English un (“not, reverse”); and -fin, from Latin finis (“end, boundary”). Explore each root to see other English words built from the same source.