Definition of "untenably" [untenably]

• In an untenable way. (adjective)

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• "My head begins to spin and I grimly realize that an ad may appear alongside this very posting, just as an ad for investing in nuclear energy appears in my posting on the BP oil spill in which I mention the perils of our president's and nation's untenably blasé attitude about nuclear energy."
• "My head begins to spin and I grimly realize that an ad may appear alongside this very posting, just as an ad for investing in nuclear energy appears in my posting on the BP oil spill in which I mention the perils of our president's and nation's untenably blasé attitude about nuclear energy."
• "But unless the surprise includes stimulating the home-building and construction industries, the unemployment rate will remain untenably high for an extended time."