na-adjective, noun
crisp; terse; laconic
Describes writing or speech that is concise and to the point, often with a literary or slightly formal tone. Rare in everyday conversation.
彼の文章は簡勁で無駄がない。
His writing is crisp and without waste.
簡勁な表現がこの作家の特徴だ。
Terse expression is a hallmark of this writer.