The Collaborative International Dictionary of English v.0.48:

outright \out"right`\ adj.
   Downright; plain; unqualified; utter; straight-out; as, an
   outright lie.

   Syn: flat-out, out-and-out.
        [PJC]

The Collaborative International Dictionary of English v.0.48:

outright \out"right`\, adv.
   1. Immediately; without delay; at once; as, he was killed
      outright.
      [1913 Webster]

   2. Completely; utterly. --Cardinal Manning.
      [1913 Webster]

WordNet (r) 3.0 (2006):

outright
    adv 1: without restrictions or stipulations or further payments;
           "buy outright"
    2: without reservation or concealment; "she asked him outright
       for a divorce"
    3: without any delay; "he was killed outright" [syn:
       instantaneously, outright, instantly, in a flash]
    adj 1: without reservation or exception [syn: outright,
           straight-out, unlimited]

Moby Thesaurus II by Grady Ward, 1.0:

165 Moby Thesaurus words for "outright":
   absolute, absolutely, admitting no exception, all, all-embracing,
   all-encompassing, all-out, all-pervading, altogether, arrant,
   at once, bald, baldly, born, broad-based, candidly, categorical,
   categorically, classical, clean, clear, complete, completely,
   comprehensive, comprehensively, conclusive, congenital, consummate,
   consummately, crass, decided, decisive, deep-dyed, definite,
   definitive, determinate, direct, directly, downright,
   dyed-in-the-wool, egregious, entire, entirely, exactly, exhaustive,
   exhaustively, explicit, explicitly, express, final, fixed,
   flagrant, flat, flat-out, free, freely, full, fully, glaring,
   global, globally, gross, hundred per cent, immediately, implicit,
   in full, in full measure, in toto, inappealable, inclusively,
   indisputable, inside out, instantaneously, instantly, integrally,
   intensive, intolerable, largely, omnibus, omnipresent, on the spot,
   one and all, openly, out-and-out, peremptory, perfect, pervasive,
   plain, plainly, plumb, positive, precious, precisely, profound,
   pronounced, proper, pure, purely, quite, radical, rank, regular,
   right away, right off, round, roundly, shattering, sheer, shocking,
   stark, stark-staring, starkly, straight, straight-out,
   straightforwardly, superlative, surpassing, sweeping, the veriest,
   thorough, thoroughgoing, thoroughly, through-and-through,
   to the hilt, total, totally, tout a fait, ubiquitous,
   unambiguously, unbearable, uncircumscribed, unconditional,
   unconditionally, unconditioned, unconscionable, undeniable,
   undisguised, undoubting, unequivocal, unequivocally, unhampered,
   unhesitating, universal, unlimited, unmistakable, unmitigated,
   unqualified, unquestioning, unrelieved, unreserved, unreservedly,
   unrestricted, unspoiled, unwaivable, utter, utterly, veritable,
   whole, wholesale, wholly, with abandon, without exception,
   without reserve, without restraint, without stint