Source : Webster's Revised Unabridged Dictionary (1913)

Inauspicious \In`aus*pi"cious\, a.
   Not auspicious; ill-omened; unfortunate; unlucky;
   unfavorable. ``Inauspicious stars.'' --Shak. ``Inauspicious
   love.'' --Dryden. -- {In`aus*pi"cious*ly}, adv. --
   {In`aus*pi"cious*ness}, n.

Source : WordNet®

inauspicious
     adj 1: not auspicious; boding ill [syn: {unfortunate}] [ant: {auspicious}]
     2: contrary to your interests or welfare; "adverse
        circumstances"; "made a place for themselves under the
        most untoward conditions" [syn: {adverse}, {harmful}, {untoward}]
     3: 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" [syn: {ill}, {ominous}]