The Collaborative International Dictionary of English v.0.48:
Luckily \Luck"i*ly\, adv. [From Lucky.] In a lucky manner; by good fortune; fortunately; -- used in a good sense; as, they luckily escaped injury. [1913 Webster]WordNet (r) 3.0 (2006):
luckily adv 1: by good fortune; "fortunately the weather was good" [syn: fortunately, fortuitously, luckily, as luck would have it] [ant: alas, regrettably, unfortunately, unluckily]