Meaning of guài:
怪
bewildering; odd; strange; uncanny; quite; variant of 怪[guai4]
Zhè cì de shìqíng zhēn shì tài guài le.
这次的事情真是太怪了。
This event is really too bewildering.
Tā de xíngwéi hěn guài.
他的行为很怪。
His behavior is very odd.
Zhè jiàn shì zhēn de hěn guài.
这件事真的很怪。
This matter is really strange.
Zhège shìqing kàn qǐlái hěn guài.
这个事情看起来很怪。
This situation looks very uncanny.
Jīntiān de tiānqì zhēn guài, yīhuǐ'er qíng yīhuǐ'er yǔ.
今天的天气真怪,一会儿晴一会儿雨。
Today's weather is quite strange, one moment it's sunny, the next it's raining.
Tā jīntiān de xíngwéi hěn guài.
他今天的行为很怪。
His behavior today was very strange.
devil; monster
Jīntiān de tiānqì zhēn guài.
今天的天气真怪。
The weather today is really strange.
Zài zhège diànyǐng lǐ, yǒu hěnduō bùtóng de guài wù.
在这个电影里,有很多不同的怪物。
In this movie, there are many different monsters.
to wonder at; to blame
Wǒ juéde hěn guài tā méiyǒu lái cānjiā pàiduì.
我觉得很怪他没有来参加派对。
I find it very strange that he didn't come to the party.
Zhè bù shì tā de cuò, nǐ bù néng guài tā.
这不是他的错,你不能怪他。
This is not his fault, you can't blame him.
rather
Zhè cì kǎoshì de tímù guài jiǎndān de.
这次考试的题目怪简单的。
The questions in this exam are rather simple.