noun, noun or participle which takes 'suru', transitive verb
fault-finding; carping; nitpicking
Refers to persistently pointing out someone's minor faults or mistakes, often in a nagging or overly critical way. Can be used as a noun or with する as a transitive verb.
彼はいつも人の小さなミスを咎め立てする。
He is always nitpicking other people's small mistakes.
そんな
You don't have to find fault so much, do you?