faultfinding

Adjective

• tending to find and call attention to faults
  • a captious pedant
    
  • an excessively demanding and faultfinding tutor
    

• tending to make moral judgments or judgments based on personal opinions
  • a counselor tries not to be faultfinding
    

Noun

• persistent petty and unjustified criticism

Related words

• Synonyms: 
  captious , faultfinding(a) , carping