[mass noun]the quality or state of being subtle 微妙,细致,精巧,敏锐 the textural subtlety of Degas. 德加作品的巧妙。 ■[count noun]a subtle distinction, feature, or argument 细微区别(或特征);缜密的论证 the subtleties of English grammar. 英语语法的细微差别。
语源
Middle English: from Old French soutilte, from Latin subtilitas, from subtilis 'fine, delicate' (see subtle)