sad; miserable; wretched

Why is she so unhappy?

unfortunate; unlucky

an unhappy incident.

unfavorable; inauspicious

an unhappy omen.

infelicitous; unsuitable

an unhappy choice of words.

Archaic . causing trouble; reprehensible; troublesome.

adjective

cheerful , glad , happy , joyous , fortunate , lucky , timely

adjective

bleak , bleeding , blue * , bummed out , cheerless , crestfallen , dejected , depressed , despondent , destroyed , disconsolate , dismal , dispirited , down * , down and out , downbeat , downcast , down in the mouth * , dragged , dreary , gloomy , grim , heavy-hearted , hurting , in a blue funk , in pain , in the dumps , let-down , long-faced , low , melancholy , mirthless , miserable , mournful , oppressive , put away * , ripped , saddened , sorrowful , sorry , teary , troubled , afflicted , cursed , hapless , ill-fated , ill-starred , luckless , misfortunate , untoward , wretched , blue , desolate , down , downhearted , dull , dysphoric , melancholic , sad , spiritless , tristful , wistful , star-crossed , unlucky , awkward , ill-chosen , inappropriate , inept , infelicitous , bummed , calamitous , deplorable , discontented , dismayed , distressed , distressing , forlorn , grievous , heart-sick , inauspicious , joyless , lugubrious , malign , pessimistic , unfavorable , unfortunate , unpropitious , woebegone , woeful