In British English, using quite suggests you are not very enthusiastic about something. In American English, quite is a stronger way of qualifying an adjective. In both British and American English, the way you say the word is important. In British English, if you say It was quite good and you put the emphasis on the quite , you mean it was good, but not very good. If you put the emphasis on good, you mean it was very good. In British English, when it is used with adjectives like impossible or unacceptable , it means completely , and you put the emphasis on it. In American English, the emphasis is always on the adjective that goes with quite. ---from Longman .

相当