faultfinding

(noun) persistent petty and unjustified criticism. Synonyms: carping.

(adj) tending to make moral judgments or judgments based on personal opinions. Synonyms: faultfinding(prenominal). Example: "A counselor tries not to be faultfinding."

(adj) tending to find and call attention to faults. Synonyms: captious. Examples: "A captious pedant." "An excessively demanding and faultfinding tutor."