本質|ほんしつhonshitsu[0]heiban (flat)

1. no-adjectiveessence; true nature; substance; reality
   それから、彼かれは、ケンブリッジで研究けんきゅうを始はじめ、宇宙うちゅうの本質ほんしつについて前まえよりいっそう多おおくの考かんがえを発展はってんさせ始はじめた。↗

   Then he began his work at Cambridge, developing many new ideas about the nature of the universe.

• Synonym核心かくしんNeutralA neutral word for the core or crux of something, stressing what is central; 「本質」 stresses the fundamental nature instead.
• SynonymエッセンスNeutralA neutral loanword for the distilled essence or quintessence; 「本質」 centers on a thing's fundamental nature.
• Synonym核かくNeutralA neutral word for the pit of a fruit, or the core or nucleus of something; 「本質」 stresses inner nature.
• Synonym本性ほんしょうNeutralA neutral word for a person's true character or innate nature; 「本質」 applies to the fundamentals of both people and things.
• Related骨子こっしWrittenA written/formal prose word for the skeleton or main points of something, as in 「法案の骨子」; 「本質」 refers to a thing's fundamental nature.
• Related質しつNeutralA neutral word for quality or calibre; 「本質」 points to the inherent, fundamental attributes of a thing.
• Related性質せいしつNeutralA neutral word for disposition, properties and characteristics, more concrete than 「本質」, which targets what is most fundamental.
• Related根ねNeutralA neutral word for root or source, stressing the origin or cause; 「本質」 stresses the inner nature.
• Related骨髄こつずいWrittenA written/formal prose word for bone marrow, used figuratively for the depths of one's heart; 「本質」 is about nature.
• Related中核ちゅうかくWrittenA written/formal prose word for the core part of something, as in 「中核企業」; 「本質」 is about the nature itself.
• RelatedかなめNeutralA neutral word for the pivot or keystone, as in 「チームの要」; 「本質」 refers to fundamental attributes.
• Related眼目がんもくWrittenA written/formal prose word for the main point or focus of something; 「本質」 is the fundamental nature.
• Related性せいNeutralA neutral word for innate nature or temperament, and also sex and gender; 「本質」 concerns the essence of things.
• Related心臓部しんぞうぶNeutralA neutral word for the heart region or the central part of a place or organization; 「本質」 is about nature.
• Antonym外観がいかんNeutralA neutral antonym: outward appearance or looks, contrasted with 「本質」 as the inner, fundamental side.

Use 「本質」 for the fundamental nature of a thing, as in 「問題の本質」 or 「本質的」. For the core or center say 「核心」; for properties and characteristics say 「性質」; for the distilled essence say 「エッセンス」; for a person's true character say 「本性」; for outward appearance say 「外観」. 「骨子」「中核」「眼目」 are written/formal prose words for the core or main point.

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

1. それ抜ぬきにはその物ものの存在そんざいが考かんがえられない性質せいしつ・要素ようそ。