1. 
[syn: sincerely, unfeignedly, truly]
The Collaborative International Dictionary of English v.0.48:
Unfeigned \Un*feigned"\, a.
   Not feigned; not counterfeit; not hypocritical; real;
   sincere; genuine; as, unfeigned piety; unfeigned love to man.
   "Good faith unfeigned." --Chaucer. -- Un*feign"ed*ly, adv.
   -- Un*feign"ed*ness, n.
   [1913 Webster]
WordNet (r) 3.0 (2006):
unfeignedly
    adv 1: with sincerity; without pretense; "she praised him
           sincerely for his victory"; "was unfeignedly glad to see
           his old teacher"; "we are truly sorry for the
           inconvenience" [syn: sincerely, unfeignedly, truly]
           [ant: insincerely]