汉语翻译：
a. 性情乖戾的, 脾气暴躁的, 生气的词型变化：
名词:grumpiness副词:grumpily形容词比较级:grumpier最高级:grumpiest英语解释：
形容词 grumpy:

perversely irritable同义词：crabbed, crabby, cross, fussy, grouchy, bad-tempered, ill-tempered

例句：

Don't worry about his grumpy expression, his bark is worse than his bit.不要担心他的语言粗暴，他说话严厉，但并无恶意。

I can see she is a woman of her word. Most people would have made this weather an excuse not to come so far to visit a grumpy old man.可以看出她是个守信用的人。遇到这种天气，大多人会以此为借口，不来看望一个脾气不好的老人。

The grumpy man found fault with everything.那个性情乖戾的人对什么事都要找岔。

详细解释：
grump.y
adj.（形容词）
grump.i.er,grump.i.est
Surly and peevish; cranky.
粗鲁且坏脾气的；暴躁地
【引伸】
grump.ily
adv.（副词）
grump.iness
n.（名词）