Usage patterns 〈 人ひと 〉 に 〈 事こと 〉 の 適てき 性せい がある someone has an aptitude for something
He has an aptitude for being an engineer.
適てき 性せい を 判はん 断だん する to judge someone's aptitude
In the interview, they judge the applicant's aptitude.
適てき 性せい に 欠か ける to lack aptitude (for something)
He seems to lack the aptitude for this job.
〈 人ひと 〉 の 適てき 性せい を 見み 極きわ める to figure out someone's aptitude
The teacher tried to determine each student's aptitude.
Kanji 適 suitable, occasional, rare Related words 才能 is a broad term for natural talent or ability in general, while 適性 specifically means suitability for a particular job or role.
素質 refers to an innate quality or potential a person has, whereas 適性 focuses on how well that quality matches a specific task or field.
適任 describes a person who is the right fit for a job or role, while 適性 refers to the underlying aptitude that makes them so.
適性 specifically measures fitness for a particular job or task, while 資質 refers more broadly to a person's inherent character and aptitudes.
Don't confuse with 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.
Etymology Compound of 適 (suitable) and 性 (nature, quality). The exact historical derivation is uncertain, but the combination naturally yields the meaning 'suitable nature' or 'aptitude'.
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