nit-pick

verb (used without object)

1. to be excessively concerned with or critical of inconsequential details.

verb (used with object)

2. to criticize by focusing on inconsequential details.

noun

3. a carping, petty criticism.

adjective

4. of, relating to, or characteristic of a nitpicker or nitpicking.

verb (intr)

1. informal to raise petty objections or concern oneself with insignificant details

v.“seek petty faults,” also nit-pick, 1962, back-formation from earlier nitpicker. Related: Nitpicking; nitpicky.