1. 
   disturbingly
   [adv] - in a disturbing manner
   Found op http://www.webdictionary.co.uk/definition.php?query=disturbingly
   
   
2. 
   disturbingly
   adverb in a disturbing manner; `the details of the kidnaper`s letter had sounded disturbingly convincing`
   Found op http://wordnetweb.princeton.edu/perl/webwn?s=disturbingly
   
   
3. 
   disturbingly
   disturbingly 1. In a disturbing manner. 2. Troubling emotionally or mentally; being upset.
   Found op http://www.wordinfo.info/words/index/info/view_unit/2197/
   
   
4. 
   disturbingly
   1) In a disturbing manner
   Found op http://www.mijnwoordenboek.nl/EN/crossword-dictionary/disturbingly/1
   
   

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