Noun
The act of finding fault or blaming; -- used derogatively. Also Adj.
Source: Webster's dictionaryfault finding
Just then, with a wink and a sly normal lurch, The owl very gravely got down from his perch, Walked round, and regarded his fault-finding critic (Who thought he was stuffed) with a glance analytic. James Thomas Fields
He has great tranquility of heart who cares neither for the praises nor the fault-finding of men. Honoré de Balzac
No sooner do men settle down to a given set of ideas, a pat-tern of living and of thinking, than fault-finding begins, and fault-finding is the tap-root of revolutions. Frank Chodorov