Source : Webster's Revised Unabridged Dictionary (1913)

Irrespective \Ir`re*spec"tive\, a.
   1. Without regard for conditions, circumstances, or
      consequences; unbiased; independent; impartial; as, an
      irrespective judgment.

Source : WordNet®

irrespective
     adv : in spite of everything; without regard to drawbacks; "he
           carried on regardless of the difficulties" [syn: {regardless},
            {disregardless}, {no matter}, {disregarding}]