牛津高阶，也不是没有问题。

grumpy:

朗文当代

bad-tempered and easily annoyed

牛津高阶

bad-tempered

韦氏高阶

easily annoyed or angered : having a bad temper or complaining often

grumpy有个名词grump，就是爱抱怨的人。而且，常常都是be grumpy about 这样用，显然是有抱怨意涵。

ex:

The clamor, scientists say, isn’t a problem just for people grumpy about loud music and beeping iPhones.

完整意涵朗文当代在bad-tempered的Thesaurus里

grumpy: easily annoyed and often complaining about things – used especially when talking about people you know well. These words sound much gentler and less critical than bad-tempered.

牛津则是在同义词词典的irritable里

grumpy:not happy with things and complaining a lot, especially in a way that annoys other people.