Short

concise
簡潔

Example:
His presentation was very concise and to the point.
彼の発表は要点を押さえて簡潔やった。

Comment:
This has a positive image.

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brief
短い

Example:
His explanation was very brief.
彼の説明は短かった。

Comment:
This is fairly neutral, though it might be slightly negative depending on the situation.

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terse
簡明

Example:
He grunted out a terse reply.
簡明な返事を言い出した。

Comment:
This has a negative image.