[1] : The Collaborative International Dictionary of English v.0.48

facetious \face"tious\, a. cf. f. fac'etieux. see
   facetiae.
   1. given to wit and good humor; merry; sportive; jocular; as,
      a facetious companion.
      1913 webster

   2. characterized by wit and pleasantry; exciting laughter;
      as, a facetious story or reply. -- face"tiously, adv.
      -- face"tiousness, n.
      1913 webster
see also:
facetiae face"tiously face"tiousness 

[2] : WordNet (r) 2.0

facetiously
     adv : not seriously; "i meant it facetiously" syn: jokingly, tongue-in-cheek
see also:
jokingly tongue-in-cheek 

Facetiously >> F Words
Facetiously, definition of term: Facetiously
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