Jisho

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Adverb (fukushi)
1. ... the heck (e.g. "what the heck?"); ... in the world (e.g. "why in the world?"); ... on earth (e.g. "who on earth?")Yojijukugo (four character compound), emph. form of 一体
Other forms
いったい全体 【いったいぜんたい】

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