Definition of dead set
- The mayor was dead set against [=strongly opposed to] the plan.
- She was dead set on [=completely certain about] going to college.
: deprived of life : no longer alive
: having the appearance of death : deathly
: lacking power to move, feel, or respond : numb
: someone who is no longer alive : one that is dead (see 1dead 1)
: the state of being dead
: the time of greatest quiet
: absolutely, utterly
: suddenly and completely
: to cause to sit : place in or on a seat
: to put (a fowl) on eggs to hatch them
: to put (eggs) for hatching under a fowl or into an incubator
: the act or action of setting
: the condition of being set
: a number of things of the same kind that belong or are used together
: intent, determined
: intentional, premeditated
: fixed by authority or appointment : prescribed, specified
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