always the same; never changing 始终如一的；永无变化的 Her routine was invariable. 她的日常生活总是千篇一律。 🔊🔊 his invariable courtesy and charm 他那一贯的彬彬有礼和魅力 an invariable principle 一贯原则 This is an invariable law: true at all times and places. 这是一成不变的定律：在任何时间和任何地方都适用。
Word Originlate Middle English: from French, or from late Latin invariabilis, from in- ‘not’ + variabilis (from variare, from varius ‘diverse’).