quibble
quib-ble
verb
To raise trivial objections or argue about minor, unimportant details.
"Please don't quibble over such a small detail."
noun
A minor, often trivial, objection or criticism about something unimportant.
"My only quibble was the slightly late delivery."
Thesaurus
Synonyms: quiddity, cavil, pettifog, bicker, niggle, brabble, squabble