怪 (guài): strange; to blame; quite

The style of this piece of clothing is really odd; I've never seen such a strange collar.

He's being odd today; he's barely spoken all day, as if something is on his mind.

It suddenly started snowing on a summer evening; the weather was so strange that people couldn't believe it.

Don't blame him; this isn't his fault. It's because I didn't notify everyone in advance.

Why is this phone acting so weird? The screen keeps flickering on and off—is it broken?