Definition of unfortunate :
1. An unfortunate person.
2. Not fortunate; unsuccessful; not prosperous; unlucky; attended with misfortune; unhappy; as, an unfortunate adventure; an unfortunate man; an unfortunate commander; unfortunate business.
ruined, broken, dispossessed, pitiable, bankrupt, ill-chosen, underdog, misfortunate, ill-starred, deplorable, regrettable, unfortunate person, roofless, lucky, afflicted, happy, underprivileged, fatal, destitute, luck, homeless, troubled, condemnable, star-crossed, shipwrecked, wretch, inappropriate, abject, loser, infelicitous, inept, cursed, unpromising, hapless, pathetic, black, impoverished, castaway, shattered, pitiful, stricken, ill-omened, shameful, pained, awkward, rich, ill, doomed, unsuccessful, too bad, good, unhappy, disgraceful, luckless, fateful, wretched, ability, poor, sad, piteous, ominous, ill-fated
adverse (part of speech: adjective)
disastrous, unlucky, burdensome, hard, grievous, unfavorable, difficult, calamitous, troublesome, adverse, perilous, inauspicious, opposing, antipathetic, woeful, unpropitious, tragic, untoward, miserable, detrimental, catastrophic, unfriendly, distressful