dead set

adjective

1. firmly decided or determined; resolved: His family was dead set against the marriage.

noun

2. a serious or determined attempt; firm effort: He made a dead set at winning the championship.
3. Hunting. the stiff posture assumed by a hunting dog in indicating the presence and location of game.

adverb

1. absolutelyhe is dead set against going to Spain

noun

2. the motionless position of a dog when pointing with its muzzle towards game

adjective

3. (of a hunting dog) in this position

interjection

4. Australian slang an expression of affirmationdead set, I worked from dawn to dusk