Definition of "existentially" [existentially]

• In an existential manner (adverb)

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• "The latter, especially, can scarcely be expected to to surrender to the the view that its obstructionism, however maddening, around a program that nowhere close to weaponized, is an exponentially -- not to mention "existentially" -- greater threat than a state that has had nukes for years and refuses to admit as much."
• "Ich-Erzähler [first-person narrator] who recalls the event) is a matrix from which both states spring and on which they remain existentially dependent."
• "While the American people broadly voted for peace and withdrawal from Bush's disastrous Iraq war, the singular and only faction in the US that is "existentially" threatened by withdrawal from the Iraq war is precisely the elite global corporate Empire of 'old economy 'oily, weapons and financial interests that Bush and Cheney represent."