1) Deplorably 2) Expressively 3) Forlornly 4) Lamentably 5) Miserably 6) Pathetically 7) Pensively 8) Pitifully 9) Solemnly 10) Sombrely 11) Touchingly 12) Unfortunately 13) Unhappily 14) Unluckily 15) Woefully 
• (adv.) Grievously; deeply; sorrowfully; miserably. • (adv.) Wearily; heavily; firmly. • (adv.) Seriously; soberly; gravely.
Sad'ly adverb 1. Wearily; heavily; firmly. [ Obsolete] « In go the spears full sadly in arest.» Chaucer. 2. Seriously; soberly; gravely. [ Obsolete] « To tell thee sadly , shepherd, without blame Or our neglect, we lost her as we came.»...
[adv] - with sadness 2. [adv] - in an unfortunate way
adverb in an unfortunate way; `sadly he died before he could see his grandchild`