Source : Webster's Revised Unabridged Dictionary (1913)

Ill-omened \Ill`-o"mened\, a.
   Having unlucky omens; inauspicious. See Note under {Ill},
   adv.

Source : WordNet®

ill-omened
     adj : marked by or promising bad fortune; "their business venture
           was doomed from the start"; "an ill-fated business
           venture"; "an ill-starred romance"; "the unlucky
           prisoner was again put in irons"- W.H.Prescott [syn: {doomed},
            {ill-fated}, {ill-starred}, {unlucky}]