undefined

1. Not precisely limited, determined, or distinguished (synset 300700834)
   "an undefined term"; "undefined authority"; "some undefined sense of excitement"; "vague feelings of sadness"; "a vague uneasiness"
   also: indefinite - vague or not clearly defined or stated
   similar to: indefinable, undefinable - not capable of being precisely or readily described; not easily put into words
   same as: vague

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