na-adjective, noun
honest; incorruptible; integrity
Describes a person of unwavering moral uprightness, especially in public or professional life. Often used in formal or written contexts to praise officials, leaders, or conduct.
彼は廉潔な政治家として知られている。
He is known as an incorruptible politician.
その裁判官の廉潔さは誰もが認めるところだ。
Everyone acknowledges the integrity of that judge.
Composed of 廉 (pure, honest) and 潔 (clean, pure). The combination reinforces the idea of moral cleanliness and incorruptibility. The exact historical derivation is uncertain, but the kanji choice is conventional for this meaning.