'Happily' definitions:

Definition of 'happily'

From: WordNet
adverb
In a joyous manner; "they shouted happily" [syn: happily, merrily, mirthfully, gayly, blithely, jubilantly] [ant: unhappily]
adverb
In an unexpectedly lucky way; "happily he was not injured" [ant: sadly, unhappily]

Definition of 'Happily'

From: GCIDE
  • Happily \Hap"pi*ly\ (h[a^]p"p[i^]*l[y^]), adv. [From Happy.]
  • 1. By chance; peradventure; haply. [Obs.] --Piers Plowman. [1913 Webster]
  • 2. By good fortune; fortunately; luckily. [1913 Webster]
  • Preferred by conquest, happily o'erthrown. --Waller. [1913 Webster]
  • 3. In a happy manner or state; in happy circumstances; as, he lived happily with his wife. [1913 Webster]
  • 4. With address or dexterity; gracefully; felicitously; in a manner to insure success; with success. [1913 Webster]
  • Formed by thy converse, happily to steer From grave to gay, from lively to severe. --Pope.
  • Syn: Fortunately; luckily; successfully; prosperously; contentedly; dexterously; felicitously. [1913 Webster]