dead set
phrase
: firmly determined
The mayor was dead set against[=strongly opposed to] the plan.
She was dead set on[=completely certain about] going to college.
Cite this Entry
“Dead set.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/dead%20set. Accessed 10 Mar. 2026.
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