inauspicious in WordNet English dictionary

1. contrary to your interests or welfare
   "adverse circumstances"; "made a place for themselves under the most untoward conditions"
   adverse  inauspicious  untoward 
   
2. presaging ill fortune
   "ill omens"; "ill predictions"; "my words with inauspicious thunderings shook heaven"- P.B.Shelley; "a dead and ominous silence prevailed"; "a by-election at a time highly unpropitious for the Government"
   ill  inauspicious  ominous 
   
3. not auspicious; boding ill
   inauspicious  unfortunate