1) Dejectedly 2) Desolately 3) Despondently 4) Dolefully 5) Forlornly 6) Gloomily 7) Glumly 8) In an unfortunate way 9) In an unpleasant way 10) Miserably 11) Mournfully 12) Sadly 13) Sorrowfully 14) Woefully 15) Wretchedly Found on https://www.crosswordclues.com/clue/unhappily