1
obstinacy in doing sth
表示在某事上固执，in 后接动名词。
Her obstinacy in refusing to compromise cost her the deal.
她拒绝妥协的固执使她失去了这笔交易。
倔强；顽固；固执
obstinacies — plural of obstinacy
先理解核心含义，再看它在真实句子里的用法。
倔强；顽固；固执
the quality of being stubborn or refusing to change one's mind, attitude, or course of action
Her obstinacy in refusing to compromise cost her the deal.
她拒绝妥协的固执使她失去了这笔交易。
固执或顽固的状态或行为。
The state, or an act, of stubbornness or doggedness.
难以处理或克服的特性
the trait of being difficult to handle or overcome
一群野牛；野牛的集合名词。
A group of bison; the collective noun for bison.
坚决坚持自己的想法或愿望
resolute adherence to your own ideas or desires
His obstinacy cost him the job.
他的固执让他失去了这份工作。
She shook her head with obstinacy.
她固执地摇了摇头。
The teacher was frustrated by the student's obstinacy.
老师对这个学生的固执感到很无奈。
表示在某事上固执，in 后接动名词。
Her obstinacy in refusing to compromise cost her the deal.
她拒绝妥协的固执使她失去了这笔交易。
with obstinacy 作方式状语，相当于 stubbornly。
He defended his position with obstinacy.
他固执地捍卫自己的立场。
指疾病、问题等难以处理时，常用 the obstinacy of...。
The obstinacy of the disease surprised the doctors.
这种疾病的顽固性令医生们惊讶。
Not this
He is very obstinacy.
Use this
He is very obstinate.
obstinacy 是名词，不能作 be 的表语；表示某人性格‘固执’时要用形容词 obstinate。
Not this
His obstinacy of refusing to change his plan made everyone angry.
Use this
His obstinacy in refusing to change his plan made everyone angry.
obstinacy 后接动名词表示‘在某事上固执’时，介词用 in，不用 of；of 常表示所属关系，不引导这种补足成分。
Focus on the distinctions below. Other candidates are kept compact until a reliable usage note is available.
十足的倔强
He refused to apologize out of sheer obstinacy.
他因为十足的倔强而拒绝道歉。
拒不…的固执
Her obstinacy in refusing to compromise cost her the deal.
她拒绝妥协的固执让她丢掉了这笔交易。
表现出固执
The patient showed obstinacy about taking his medicine.
这位病人在服药问题上表现出固执。
疾病的顽固性
The obstinacy of the disease made treatment difficult.
这种疾病的顽固性使治疗变得困难。
孩子气的固执
His childish obstinacy annoyed everyone in the room.
他孩子气的固执惹恼了房间里的每个人。
固执是弱者的力量。
From François de La Rochefoucauld's Maxims (1678), a famous French moralist. This aphorism observes that people who cannot convince others often become even more stubborn.
出自法国道德家拉罗什富科的《箴言录》（1678）。这句格言讽刺那些无法说服他人时反而更加固执的人。
Use obstinacies naturally, then get feedback on meaning, tone, grammar, and phrasing.
Revisit a common error or keep this word in your review list.
Obstinacy 以 'obst' 开头，联想到 obstacle（障碍）——倔强的人遇到障碍也不肯回头。
语域：formal 常见场景：formal writing、literary prose、clinical descriptions 该词多用于正式书面语或文学作品中，语气比 stubbornness 更严肃；在医学语境中可指病症“难治、顽固”。日常口语中较少使用，通常说 stubbornness。
No common English word rhymes exactly with obstinacy /ˈɑbstənəsi/ (stress on the first syllable). The -acy words below end in the same unstressed /əsi/ and share the spelling -acy, but they differ in the stressed vowel and the consonants after it, so they are not perfect rhymes. Beware of lookalikes such as constancy /ˈkɑːnstənsi/, which sounds similar but is also not a rhyme.
Dictionary facts from ECDICT, WIKTIONARY.