na-adjective, noun
Describes speech, writing, or expression that flows smoothly and effortlessly. Somewhat literary; in everyday speech, 流暢 (りゅうちょう) is more common for spoken fluency.
彼の文章は暢達で、読んでいて気持ちがいい。
His writing is fluent and a pleasure to read.
暢達な語り口に聴衆は引き込まれた。
The audience was drawn in by the speaker's smooth delivery.