adj. 25B6; adjective
he was unlucky not to score : UNFORTUNATE, luckless, out of luck, hapless, ill-fated, ill-starred, unhappy; informal down on one's luck; poetic/literary star-crossed.
an unlucky number : UNFAVOURABLE, inauspicious, unpropitious, ominous, cursed, ill-fated, ill-omened, disadvantageous, unfortunate.
fortunate, favourable.