cantankerous

那个脾气暴躁的邻居总是抱怨音乐太吵。

The ___cantankerous neighbor always complains about loud music.

那个脾气暴躁的店主就因为孩子们碰了一个糖果罐，就把他们赶出了店铺。

The ___cantankerous shop owner chased the children out of his store just for touching a candy jar.

一个蛮不讲理的顾客为了一张过期的优惠券与收银员争吵，堵住了整条结账队伍。

A ___cantankerous customer held up the entire checkout line arguing with the cashier over an expired coupon.