'妥当' (tuǒ dàng) is an adjective meaning 'appropriate', 'suitable', or 'satisfactory' — describing something that meets requirements, fits the situation well, or has been handled properly. The first character 妥 (tuǒ) originally means 'settled' or 'secure', suggesting stability and resolution; the second character 当 (dàng) means 'fitting' or 'proper' in this context (note: not the more common 'dāng' reading). Together, they convey a sense of balanced, thoughtful appropriateness — often implying careful consideration or prudent judgment.

This word is commonly used in formal or semi-formal settings: when evaluating plans, arrangements, decisions, or actions. It frequently appears after verbs like '安排' (arrange), '处理' (handle), or '考虑' (consider), and can also function as a predicate ('这个方案很妥当') or attributive ('一个妥当的办法'). It carries a tone of reliability and conscientiousness, rarely used for casual or emotional expressions.