quibble

Universal Words verb, noun verb [V] ~ (about / over sth) to argue or complain about a small matter or an unimportant detail: It isn't worth quibbling over such a small amount. noun a small complaint or criticism, especially one that is not important: minor quibbles * The only quibble about this book is the lack of colour illustrations. * The machine comes with a three-year no quibble guarantee.