You can make 121 anagrams from letters in dead-set (-addeest).
An Americanism dating back to 1840-50
Moreover, all the French here are, and always have been, dead set on Asia.
While he was quite comfortable telling us all about it, his wife was dead set against it.
Madison was dead set against it, partly on the grounds that his state of Virginia would be a big loser in any such assumption.
He's dead set on Clara goin' for service and she wants to be a typewriter.
They are dead set against England, and claim to belong to France.
The dead set against him extended from the Fifth Form downwards.
dead set on it, and says he wouldn't change his profession to be a king.
He got her dead set on him and his stories, that's what he gets for 'em!
I suppose he made a dead set at you while I was away—cowardly brute!
Mamma is dead set against the artistic, and I'm dead set against the fashionable.