Source : Webster's Revised Unabridged Dictionary (1913)

Unconditional \Un`con*di"tion*al\, a.
   Not conditional limited, or conditioned; made without
   condition; absolute; unreserved; as, an unconditional
   surrender.

         O, pass not, Lord, an absolute decree, Or bind thy
         sentence unconditional.                  --Dryden.
   -- {Un`con*di"tion*al*ly}, adv.

Source : WordNet®

unconditional
     adj 1: not conditional; "unconditional surrender" [ant: {conditional}]
     2: not modified or restricted by reservations; "a categorical
        denial"; "a flat refusal" [syn: {categoric}, {categorical},
         {flat}]
     3: not contingent; not determined or influenced by someone or
        something else