dead set

idiom

: firmly determined

The mayor was dead set against [=strongly opposed to] the plan.

She was dead set on [=completely certain about] going to college.

Examples of dead set in a Sentence

Recent Examples on the Web

There is also the fact that Lady Danbury (Adjoa Andoh) offers Marcus a chilly reception and seems dead set against him courting Violet, even accusing him of taking everything from her. —Maureen Lee Lenker, EW.com, 14 June 2024

But the mayor is dead set on extending his predecessor’s legacy as Giuliani 2.0 and delaying a more just future for New York. —Darren MacK, New York Daily News, 11 Apr. 2024

Rebecca Masri, founder of luxury travel app Little Emperors, has a solution for those dead set on returning to old favorites despite prices, weather and crowds: Go after Labor Day. —Amanda Gerut, Fortune Europe, 1 June 2024

Most Palestinians likely saw progress on Palestinian statehood as a good thing, but not Hamas, which has always been dead set against a two-state solution and committed to Israel’s destruction. —Matthew Levitt, Foreign Affairs, 10 May 2024