deadset
⇨ dead set; dead-set; deadset
1. adjective
complete, utter AUSTRALIA, 1965
2. adverb
1
completely, utterly. From the common collocation of 'dead completely' and 'set against/for/on' (determined (not) to do something or have something happen) AUSTRALIA, 1947.
2
really; honestly AUSTRALIA, 1987