eris·tic
                    
                                                                                                              
                                                                                                                                  i-ˈri-stik 
                                                                                                                              
            e-
                                                      
                                                          
            variants  
 or less commonly eristical    
        
    
                                
              
          
                                                      : characterized by disputatious and often subtle and specious reasoning                                      
                
                    
1
                    
                                          
              
          
                                                      : a person devoted to logical disputation                                      
                
                    
2
                    
                                          
              
          
                                                      : the art or practice of disputation and polemics                                      
                
                    
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  Merriam-Webster unabridged




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