quibble
US /ˈkwɪb.əl/
UK /ˈkwɪb.əl/

1.
cavillo, obiezione
a slight objection or criticism about a trivial matter
:
•
His only quibble was that the room was too small.
La sua unica cavillo era che la stanza era troppo piccola.
•
Let's not waste time on minor quibbles.
Non perdiamo tempo in cavilli minori.