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terrible; dreadful
amazing (e.g. of strength); great (e.g. of skills); wonderful; terrific
to a great extent; vast (in numbers)
awfully; very; immensely
凄い雨が降っていますね。
It's raining heavily, isn't it?
彼女は凄い才能を持った人だと思う。
I think she is an amazing person.
凄く寒かったから厚着をして出かけた。
It was really cold, so I bundled up and went out.