goddamn

from WordNet (r) 3.0 (2006)

goddamn
    adv 1: extremely; "you are goddamn right!" [syn: {goddam},
           {goddamn}, {goddamned}]
    adj 1: used as expletives; "oh, damn (or goddamn)!" [syn:
           {damn}, {goddamn}]
    2: 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" [syn: {blasted}, {blame}, {blamed}, {blessed},
       {damn}, {damned}, {darned}, {deuced}, {goddam}, {goddamn},
       {goddamned}, {infernal}]

from The Collaborative International Dictionary of English v.0.48

goddam \god"dam\ goddamn \god"damn\ goddamned \god"damned\adj.
   A more intense and vulgar form of {darned}; -- often taken as
   profane and offensive. [vulgar]

   Syn: blasted, blessed, damn, darned, deuced.
        [WordNet 1.5]

from Moby Thesaurus II by Grady Ward, 1.0

18 Moby Thesaurus words for "goddamn":
      absolute, accursed, blankety-blank, blasted, blessed, blooming,
      complete, consummate, cursed, damn, damnable, damned, darn,
      execrable, goddamned, infernal, outright, unmitigated