1. 
   inaptitude
   [n] - a lack of aptitude
   Found op http://www.webdictionary.co.uk/definition.php?query=inaptitude
   
   
2. 
   Inaptitude
   In·apt'i·tude noun [ In- + aptitude : confer F. inaptitude. Confer Ineptitude .] Want of aptitude.
   Found op http://www.encyclo.co.uk/webster/I/28
   
   
3. 
   inaptitude
   noun a lack of aptitude
   Found op http://wordnetweb.princeton.edu/perl/webwn?s=inaptitude
   
   
4. 
   Inaptitude
   • (n.) Want of aptitude.
   Found op http://thinkexist.com/dictionary/meaning/inaptitude/
   
   
5. 
   inaptitude
   1) A lack of aptitude 2) Inability
   Found op http://www.mijnwoordenboek.nl/EN/crossword-dictionary/inaptitude/1
   
   

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