WordNet sense 1 (a person who suffers misfortune):

unfortunate person

WordNet sense 2 (marked by or producing unhappiness):

unhappy

WordNet sense 3 (marked by or promising bad fortune):

doomed, ill-starred, unlucky

WordNet sense 4 (deserving or inciting pity):

hapless, poor, wretched, misfortunate

WordNet sense 5 ((of events) having extremely unfortunate or dire consequences; bringing ruin):

calamitous, disastrous, fatal

WordNet sense 6 (not auspicious; boding ill):

inauspicious