1. 
   Obstructive
   Ob·struct'ive adjective [ Confer F. obstrictif .] Tending to obstruct; presenting obstacles; hindering; causing impediment. -- Ob*struct'ive*ly , adverb
   Found op http://www.encyclo.co.uk/webster/O/6
   
   
2. 
   Obstructive
   Ob·struct'ive noun An obstructive person or thing.
   Found op http://www.encyclo.co.uk/webster/O/6
   
   
3. 
   Obstructive
   • (a.) Tending to obstruct; presenting obstacles; hindering; causing impediment. • (n.) An obstructive person or thing.
   Found op http://thinkexist.com/dictionary/meaning/obstructive/
   
   
4. 
   obstructive
   1) Clogging 2) Hindering 3) Impeding 4) Preventative 5) Preventive
   Found op http://www.mijnwoordenboek.nl/EN/crossword-dictionary/obstructive/1
   
   

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