Synonyms of damnedest

Adjective

1. blasted, blame, blamed, blessed, damn, damned, darned, deuced, goddam, goddamn, goddamned, infernal, cursed (vs. blessed), curst

usage: expletives used informally as intensifiers; "he's a blasted idiot"; "it's a blamed shame"; "a blame cold winter"; "not a blessed dime"; "I'll be damned (or blessed or darned or goddamned) if I'll do any such thing"; "he's a damn (or goddam or goddamned) fool"; "a deuced idiot"; "an infernal nuisance"

2. cursed, damned, doomed, unredeemed, unsaved, lost (vs. saved)

usage: in danger of the eternal punishment of Hell; "poor damned souls"

Definition and meaning of damnedest (Dictionary)