Usage patterns 〈 物もの 〉 を 適てき 正せい に 保たも つ to keep something at an appropriate/proper level
The company strives to keep its inventory at appropriate levels.
適てき 正せい な 〈 物もの 〉 a fair/appropriate ~
We offer the product at a fair price.
〈 物もの 〉 を 適てき 正せい 化か する to rationalize/optimize something to make it appropriate
There is a need to rationalize the business processes.
〈 事こと 〉 の 適てき 正せい を 欠か く to lack appropriateness/fairness in a matter
It was pointed out that this handling lacks appropriateness.
Kanji 適 suitable, occasional, rare 正 correct, justice, righteous Related words 適切 highlights being well-suited to a specific purpose or situation, while 適正 stresses fairness and conformity to an objective standard.
妥当 emphasizes logical validity or soundness of reasoning, whereas 適正 is about practical fairness or propriety in a situation.
正当 stresses legitimacy or being justified (often legally or morally), while 適正 focuses on being reasonable and properly calibrated.
適正 stresses correctness or fairness (e.g. 適正価格 ), whereas 適当 is broader and can simply mean 'good enough for the situation'.
Opposites 不当 means unjust or unfair, the direct opposite of 適正 's sense of being fair and appropriate.
適正 describes an amount, price, or level that is fair and appropriate, the opposite of 過当 , which describes one that is excessive and unreasonable.
Don't confuse with 適当 shares the kanji 適 with 適正 but usually means either 'suitable' in a loose sense or, colloquially, 'careless/random', unlike 適正 's strict sense of objective fairness.
適性 (aptitude, a person's suitability for a role) and 適正 (proper, appropriate, as in 適正価格 ) are homophones with completely different meanings.
Word family improper; inappropriate; unfair
fair price; reasonable price
reasonable profit
appropriate technology
visually correct state; proper display state
unqualified opinion
Etymology Compound of 適 (suitable, fit) and 正 (correct, right). The combination conveys the idea of being both fitting and correct, hence 'reasonable' or 'appropriate'.
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