The Collaborative International Dictionary of English v.0.48:

Unabashed \Unabashed\
   See abashed.

WordNet (r) 3.0 (2006):

unabashed
    adj 1: not embarrassed; "a tinseled charm and unabashed
           sentimentality"- Jerome Stone; "an unembarrassed greeting
           as if nothing untoward had happened" [syn: unabashed,
           unembarrassed]

Moby Thesaurus II by Grady Ward, 1.0:

36 Moby Thesaurus words for "unabashed":
   arrant, aweless, barefaced, blatant, bold, bold as brass,
   boldfaced, brassy, brazen, brazenfaced, exhibitionistic, flagrant,
   forward, immodest, impudent, lost to shame, notorious, overbold,
   shameless, swaggering, unappalled, unashamed, unawed, unblenching,
   unblinking, unblushing, unconcerned, uncowed, uncringing,
   undaunted, undismayed, unembarrassed, unflinching, unintimidated,
   unmodest, unshrinking