素質|そしつsoshitsu[0]heiban (flat)

1. nounmakings (of); aptitude; talent; qualities
   私は優すぐれた彼かれの妻つまになる素質そしつがある。↗

   I make an excellent wife for him.
2. nounnature; character; temperament; constitution; diathesis

• Synonym資質ししつNeutralInnate qualities and aptitude, often used when judging whether someone fits a post; close to 「素質」 but leaning formal.
• Synonym天性てんせいNeutralOne's inborn character and disposition; 「素質」 centers on latent ability.
• Synonym才能さいのうNeutralThe ability to do things skillfully, whether already evident or still hidden (「才能を開花させる」); 「素質」 stresses the makings that may bear fruit later.
• Synonym天資てんしWrittenWritten, old-fashioned word for natural endowment; in ordinary use say 「素質」.
• Synonym天質てんしつWrittenWritten and rare, for inborn talent; normally say 「素質」 or 「天分」.
• Synonym天賦てんぷWrittenWritten word for a heaven-given gift, as in 「天賦の才」; 「素質」 stresses the raw base still to be developed.
• Related気質きしつNeutralTemperament and disposition; 「素質」 is about latent ability.
• Related才さいNeutralTalent; used on its own and in compounds like 「文才」「商才」; 「素質」 stresses the undeveloped potential underneath.
• Related根性こんじょうNeutralGrit and backbone, but also an ingrained bad streak; 「素質」 is about natural endowment.
• Related性根しょうねNeutralThe character at one's core, in the vein of 「根性」; 「素質」 concerns ability.
• Related能のうNeutralAbility, mostly in compounds; 「素質」 is about latent promise.
• Related気性きしょうNeutralTemper and mettle, as in 「気性が荒い」; 「素質」 concerns ability.
• Related本性ほんしょうNeutralOne's true nature as it really is; 「素質」 is about latent talent.
• Related気心きごころNeutralTemper and disposition, mostly seen in 「気心が知れる」.
• Related性分しょうぶんNeutralOne's inherent disposition, as in 「心配性な性分」; 「素質」 concerns ability.
• Related心根こころねNeutralThe nature at the bottom of one's heart, judged as good or bad; 「素質」 concerns ability.
• RelatedポテンシャルNeutralLoanword for potential, at home in sports and business; 「素質」 fits everyday assessment.
• Related特性とくせいNeutralTraits peculiar to a person or thing, as in 「個人の特性」; 「素質」 is about innate aptitude.
• Related力量りきりょうNeutralHow much capability one can actually muster for a task; 「素質」 stresses innate potential.
• Related天賦の才てんぷのさいWrittenWritten set phrase for outstanding talent one is born with, stressing that it is inborn.
• Related能才のうさいWrittenWritten and rare, for a capable person or real ability; 「素質」 stresses the latent base.
• RelatedアビリティーNeutralLoanword for ability, mostly in gaming and business contexts.
• RelatedジーニアスNeutralLoanword for genius, rare; say 「天才」 instead.
• Related才幹さいかんWrittenWritten word for the ability to handle things well; 「素質」 is about latent promise.
• Related才分さいぶんWrittenWritten and rare, for inborn talent, close to the gift sense of 「素質」; in daily speech say 「才能」 or 「素質」.
• Antonym無能むのうNeutralAntonym: having no ability, unfit for the job — a verdict on actual ability; 「素質」 speaks of potential, so they oppose only in degree of talent.
• Antonym無才むさいWrittenWritten antonym: lacking talent; stands directly against 「素質」.

「素質」 is the natural makings — the inborn base from which something may develop, as in 「素質がある」. For talent in general say 「才能」; for potential, 「ポテンシャル」; when judging whether someone suits a post, 「資質」; for temperament and disposition, 「気質」 or 「性分」. Words like 「天性」「本性」「心根」 describe character rather than ability, and 「無能」「無才」 are the opposites.

Usage comparisons are AI-assisted and cross-checked by multiple models; for study reference only

1. 生まれ付うまれつき備そなわった性質せいしつ。
2. 将来しょうらいあるものになる能力のうりょくとしての性質せいしつ。