dead set against

Idioms  

1. Completely opposed to, as in His parents were dead set against John's taking a year off from college. Set against has been used to mean “opposed to” since the 1400s. Dead acquired the meaning “utterly” in the 16th century.

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Example Sentences

“You were so dead set against this when we first found that letter. You swore you’d never become a Butterfly, no matter what. You lectured me over and over again about how history cannot be changed.”

From Literature

With Poland dead set against it, that means either France or Italy, both home to rowdy agricultural lobbies, would have to sign on.

From Barron's

With Poland dead set against it, that means either France or Italy, both home to rowdy agricultural lobbies, would have to sign on.

From Barron's

“There were some colleagues that were dead set against it, saying they would never help China learn our technology,” said one magnet expert who ultimately agreed to go to China.

From The Wall Street Journal

Juray says that at first, Justin was “dead set” against reopening.

From Seattle Times