1. 
   facetiously
   [adv] - not seriously
   Found op http://www.webdictionary.co.uk/definition.php?query=facetiously
   
   
2. 
   facetiously
   jokingly 1 tongue-in-cheek adverb not seriously; `I meant it facetiously`
   Found op http://wordnetweb.princeton.edu/perl/webwn?s=facetiously
   
   
3. 
   facetiously
   facetiously 1. Not seriously. 2. In a humorous or joking manner.
   Found op http://www.wordinfo.info/words/index/info/view_unit/4244/
   
   
4. 
   facetiously
   1) Jokingly 2) Not seriously 3) Tongue-in-cheek
   Found op http://www.mijnwoordenboek.nl/EN/crossword-dictionary/facetiously/1
   
   

Tip: double click on a word to show its meaning.