Wiktionary
dead-set
a. (alternative spelling of dead set English) n. (alternative spelling of dead set English)
Usage examples of "dead-set".
But, somehow, the feeling niggled at him that she was not as dead-set against a free-trade port as he was.
Mr Hartley was dead-set against changing the town's name to one suggested by a man who had proved to be a thief, fornicator, false prophet, and all-round snake in the grass.