- 承接《词汇 trifle–unease》，继续按字母顺序收录 C2 词表，这篇收 U 开头到 V 开头的一批（unenviable - validate）。
- 涵盖大量 un- 前缀否定形容词（unequivocal、unfathomable、unpalatable 等）和"篡夺"类同根词（usurp、usurpation）。
- 学完继续扩充高阶词汇量。
重点内容
| 英文 | 音标 | 中文 | 例句 | 常用搭配 |
|---|---|---|---|---|
| unenviable (adj.) | /ʌnˈenviəbl/ | 不令人羡慕的；棘手的 | faced with the unenviable task of firing staff | an unenviable position |
| unequivocal (adj.) | /ˌʌnɪˈkwɪvəkl/ | 明确无误的 | gave an unequivocal denial | an unequivocal answer |
| unfathomable (adj.) | /ʌnˈfæðəməbl/ | 深不可测的；难以理解的 | motives that remain unfathomable | an unfathomable mystery |
| unification (n.) | /ˌjuːnɪfɪˈkeɪʃn/ | 统一 | pushed for national unification | German unification |
| uniformity (n.) | /ˌjuːnɪˈfɔːməti/ | 一致性；千篇一律 | criticized for its dull uniformity | strict uniformity |
| unison (n.) | /ˈjuːnɪsn/ | 一致；齐声 | the crowd chanted in unison | speak in unison |
| universality (n.) | /ˌjuːnɪvɜːˈsæləti/ | 普遍性 | the universality of human rights | claim universality |
| unpalatable (adj.) | /ʌnˈpælətəbl/ | 难以接受的 | had to accept the unpalatable truth | an unpalatable fact |
| unpretentious (adj.) | /ˌʌnprɪˈtenʃəs/ | 不做作的；朴实的 | an unpretentious little restaurant | an unpretentious style |
| unremitting (adj.) | /ˌʌnrɪˈmɪtɪŋ/ | 不间断的；不松懈的 | faced unremitting criticism | unremitting pressure |
| unrivalled (adj.) | /ʌnˈraɪvəld/ | 无与伦比的 | a view of unrivalled beauty | unrivalled expertise |
| unruly (adj.) | /ʌnˈruːli/ | 难以驾驭的；不守规矩的 | struggled to control the unruly class | an unruly mob |
| unsullied (adj.) | /ʌnˈsʌlid/ | 未受玷污的 | a reputation unsullied by scandal | unsullied reputation |
| untenable (adj.) | /ʌnˈtenəbl/ | 站不住脚的；难以维持的 | his position became untenable | an untenable argument |
| unthinkable (adj.) | /ʌnˈθɪŋkəbl/ | 不可想象的 | once unthinkable, now reality | previously unthinkable |
| untrodden (adj.) | /ʌnˈtrɒdn/ | 未经踏足的 | ventured into untrodden territory | untrodden ground |
| unwieldy (adj.) | /ʌnˈwiːldi/ | 笨重难操作的 | an unwieldy bureaucratic process | an unwieldy system |
| unwitting (adj.) | /ʌnˈwɪtɪŋ/ | 不知情的；无意的 | became an unwitting accomplice | an unwitting victim |
| upbraid (v.) | /ʌpˈbreɪd/ | 斥责 | upbraided him for his carelessness | upbraid someone for |
| upheaval (n.) | /ʌpˈhiːvl/ | 剧变；动荡 | a period of social upheaval | political upheaval |
| upkeep (n.) | /ˈʌpkiːp/ | 维护费用 | the upkeep of the old mansion | annual upkeep |
| uprising (n.) | /ˈʌpraɪzɪŋ/ | 起义；暴动 | crushed the popular uprising | an armed uprising |
| uproar (n.) | /ˈʌprɔː(r)/ | 喧哗；公愤 | the decision caused a public uproar | a public uproar |
| uproarious (adj.) | /ʌpˈrɔːriəs/ | 哄堂大笑的；喧闹的 | met with uproarious laughter | uproarious applause |
| upshot (n.) | /ˈʌpʃɒt/ | 结果 | the upshot was a total ban | the upshot of |
| upsurge (n.) | /ˈʌpsɜːdʒ/ | 急剧上升 | an upsurge in violent crime | a sudden upsurge |
| upturn (n.) | /ˈʌptɜːn/ | 好转；上升 | signs of an economic upturn | an upturn in sales |
| urbane (adj.) | /ɜːˈbeɪn/ | 温文尔雅的 | an urbane and witty host | urbane charm |
| urgency (n.) | /ˈɜːdʒənsi/ | 紧迫性 | acted with a sense of urgency | a matter of urgency |
| usher (n.) | /ˈʌʃə(r)/ | 引座员 | greeted by an usher at the door | a wedding usher |
| usurp (v.) | /juˈzɜːp/ | 篡夺 | accused of trying to usurp the throne | usurp power |
| usurpation (n.) | /ˌjuːzɜːˈpeɪʃn/ | 篡夺 | condemned the usurpation of authority | an act of usurpation |
| utensil (n.) | /juˈtensl/ | 器具 | a drawer full of kitchen utensils | a cooking utensil |
| utilitarianism (n.) | /ˌjuːtɪlɪˈteəriənɪzəm/ | 功利主义 | a philosophy rooted in utilitarianism | classical utilitarianism |
| utmost (adj.) | /ˈʌtməʊst/ | 极度的；最大限度的 | treated the matter with the utmost care | of the utmost importance |
| utopia (n.) | /juˈtəʊpiə/ | 乌托邦 | dreamed of building a utopia | a socialist utopia |
| utopianism (n.) | /juˈtəʊpiənɪzəm/ | 乌托邦主义 | dismissed as naive utopianism | political utopianism |
| utterance (n.) | /ˈʌtərəns/ | 说出的话；言论 | analysed every public utterance | a public utterance |
| vacancy (n.) | /ˈveɪkənsi/ | 空缺；空房 | applied for the vacancy | fill a vacancy |
| vacillate (v.) | /ˈvæsɪleɪt/ | 犹豫不决 | vacillated between the two options | vacillate over a decision |
| vacillation (n.) | /ˌvæsɪˈleɪʃn/ | 犹豫不决 | criticized for his vacillation | political vacillation |
| vacuous (adj.) | /ˈvækjuəs/ | 空洞的；无意义的 | a vacuous smile with nothing behind it | a vacuous remark |
| vagary (n.) | /ˈveɪgəri/ | 变幻莫测；反复无常 | subject to the vagaries of the weather | the vagaries of fortune |
| vagrant (n.) | /ˈveɪgrənt/ | 流浪汉 | arrested for vagrancy as a vagrant | a homeless vagrant |
| vain (adj.) | /veɪn/ | 徒劳的；虚荣的 | a vain attempt to escape | a vain hope |
| validate (v.) | /ˈvælɪdeɪt/ | 证实；确认 | results that validate the theory | validate a claim |
*usurp*（篡夺，动词）和 *usurpation*（篡夺，名词）是同根词；*unequivocal*（明确无误的）和 *untenable*（站不住脚的）都常修饰立场/论点，但意思相反——前者形容立场清晰坚定，后者形容立场无法自圆其说。
Sources
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