Copyright © 2026 Kotomora. All Rights Reserved.
妥当 (だとう, datou) Japanese meaning: valid | Kotomora
Common word› JLPT N2 › Freq. Frequency Top 10,000 Conjugation 妥当する · noun or participle which takes 'suru'
Form Positive Negative Dictionary 妥だ 当とう する 妥だ 当とう しない Polite 妥だ 当とう します 妥だ 当とう しません Past polite 妥だ 当とう しました 妥だ 当とう しませんでした Past 妥だ 当とう した 妥だ 当とう しなかった Te-form 妥だ 当とう して 妥だ 当とう しないで Desire 妥だ 当とう したい 妥だ 当とう したくない Potential 妥だ 当とう できる 妥だ 当とう できない Passive 妥だ 当とう される 妥だ 当とう されない Causative 妥だ 当とう させる 妥だ 当とう させない Causative passive 妥だ 当とう させられる 妥だ 当とう させられない Volitional 妥だ 当とう しよう Polite volitional 妥だ 当とう しましょう Imperative 妥だ 当とう しろ 妥だ 当とう するな Conditional 妥だ 当とう すれば 妥だ 当とう しなければ Tara conditional 妥だ 当とう したら 妥だ 当とう しなかったら
Report an issue with this page
I think his proposal is reasonable.
This price seems about right.
That judgment lacks validity.
Usage patterns 〈 事こと 〉 は 妥だ 当とう だと 判はん 断だん する to judge that something is reasonable/valid
The company judged the proposal to be reasonable.
妥だ 当とう 性せい を 検けん 証しょう する to verify the validity (of something)
The research team verified the validity of this theory.
妥だ 当とう な 〈 数かず 〉 a reasonable/appropriate amount (e.g. price, number)
I think this price is a reasonable amount.
妥だ 当とう 性せい がある to have validity (as an argument, method, etc.)
That argument has sufficient validity.
Kanji 妥 gentle, peace, satisfactory Related words· 14 適切 stresses being fitting or suitable for a specific purpose, while 妥当 stresses logical soundness or fairness in a broader judgment.
正当 carries a stronger moral or legal sense of rightfulness, whereas 妥当 focuses on practical reasonableness or validity.
合理的 emphasizes logical, efficient reasoning, while 妥当 emphasizes that a conclusion or decision is fair and acceptable overall.
妥当 emphasizes logical or objective validity, while 穏当 stresses moderation and the avoidance of extremes.
Show 10 more 常識的 stresses that something matches what most people would think reasonable, whereas 妥当 focuses more narrowly on whether a decision or conclusion is valid or appropriate.
妥当 is the standard, formal word for a judgment or decision being reasonable, while リーズナブル is rarely used this way and sounds borrowed.
妥当 emphasizes logical validity or soundness of reasoning, whereas 適正 is about practical fairness or propriety in a situation.
妥当 is a more formal, analytical term for something being appropriate or valid, while もっとも is the everyday word for something sounding reasonable.
Opposites 不当 means unjust or unreasonable, the direct opposite of 妥当's sense of being valid or fair.
妥当 describes a price or demand as reasonable and appropriate, the opposite of 法外, which calls it unreasonably excessive.
妥当 describes a request or judgment that is reasonable and appropriate, the opposite of a 筋違い な demand that doesn't hold up logically.
Etymology The kanji 妥 (gentle, peace) and 当 (hit, right) combine to suggest something that 'hits the mark peacefully' or is 'appropriately settled.' The exact historical derivation is uncertain, but the word has been used in Japanese to mean 'valid' or 'reasonable' since at least the early modern period.
妥当 focuses on logical or ethical validity/appropriateness, whereas 順当 is more about a smooth, expected progression or result.
妥当 means 'reasonable' or 'valid' in a formal or logical sense, while 正しい simply says something is correct or right.
妥当 describes a judgment, price, or conclusion as reasonable or valid, whereas 相応しい focuses on whether someone or something befits a particular role or situation.
妥当 means reasonable or valid in a logical sense, whereas 的確 emphasizes precision in hitting the exact point needed.
妥当 means reasonable or valid in a logical or judgmental sense, while 相応 means fitting in relation to status or scale.
妥当 is a more formal, judgment-based word for 'reasonable' or 'valid', while 手ごろ is a casual, everyday word for prices or tasks being just right.
