"词汇篇23 · N–O"（Vocab N–O）
🔒 登录后可标记已读- 承接《词汇 meritocracy–nascent》，继续按字母顺序收录 C2 词表，这篇收 N 开头到 O 开头的一批（nebulous - onerous）。
- 涵盖"过时/消失"类词（obsolete、obsolescence、oblivion）和固执性格形容词（obstinate、obdurate、obstreperous），每个词配一个常用搭配。
- 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 |
|---|---|---|---|---|
| nebulous (adj.) | /ˈnebjələs/ | 模糊不清的 | a nebulous concept hard to define | a nebulous idea |
| nefarious (adj.) | /nɪˈfeəriəs/ | 邪恶的 | a nefarious scheme to defraud investors | nefarious activities |
| negligence (n.) | /ˈneglɪdʒəns/ | 疏忽 | sued for medical negligence | gross negligence |
| nemesis (n.) | /ˈneməsɪs/ | 宿敌；报应 | he finally faced his old nemesis | an old nemesis |
| neophyte (n.) | /ˈniːəfaɪt/ | 新手 | a neophyte in the world of politics | a political neophyte |
| nepotism (n.) | /ˈnepətɪzəm/ | 裙带关系 | accused of nepotism in hiring | rampant nepotism |
| nexus (n.) | /ˈneksəs/ | 关系网；核心 | a nexus of ideas and influences | a nexus of power |
| nihilism (n.) | /ˈnaɪəlɪzəm/ | 虚无主义 | a philosophy rooted in nihilism | moral nihilism |
| nirvana (n.) | /nɪəˈvɑːnə/ | 涅槃；极乐境界 | seeking a state of nirvana | reach nirvana |
| nomenclature (n.) | /nəˈmenklətʃə(r)/ | 命名法 | confusing scientific nomenclature | standard nomenclature |
| nonchalance (n.) | /ˈnɒnʃələns/ | 冷淡；漠不关心 | answered with surprising nonchalance | studied nonchalance |
| nonchalant (adj.) | /ˈnɒnʃələnt/ | 冷淡的；若无其事的 | gave a nonchalant shrug | a nonchalant attitude |
| nonentity (n.) | /nɒˈnentəti/ | 无足轻重的人 | treated as a mere nonentity | a political nonentity |
| notoriety (n.) | /ˌnəʊtəˈraɪəti/ | 恶名 | gained notoriety after the scandal | rise to notoriety |
| novice (n.) | /ˈnɒvɪs/ | 新手 | a complete novice at chess | a novice driver |
| noxious (adj.) | /ˈnɒkʃəs/ | 有毒的；有害的 | exposed to noxious fumes | noxious gases |
| nuance (n.) | /ˈnjuːɑːns/ | 细微差别 | subtle nuances in meaning | a subtle nuance |
| oaf (n.) | /əʊf/ | 笨蛋 | a clumsy oaf who broke the vase | a clumsy oaf |
| oasis (n.) | /əʊˈeɪsɪs/ | 绿洲 | an oasis of calm in the city | an oasis of peace |
| obdurate (adj.) | /ˈɒbdjərət/ | 固执的 | remained obdurate despite pressure | an obdurate stance |
| obfuscate (v.) | /ˈɒbfʌskeɪt/ | 使模糊；混淆 | trying to obfuscate the truth | obfuscate the facts |
| obfuscation (n.) | /ˌɒbfʌˈskeɪʃn/ | 混淆；掩饰 | accused of deliberate obfuscation | legal obfuscation |
| obituary (n.) | /əˈbɪtʃuəri/ | 讣告 | read the obituary in the paper | a lengthy obituary |
| obliterate (v.) | /əˈblɪtəreɪt/ | 彻底摧毁 | the bombing obliterated the city | obliterate a target |
| oblivion (n.) | /əˈblɪviən/ | 遗忘；湮灭 | the band faded into oblivion | fade into oblivion |
| obscenity (n.) | /əbˈsenəti/ | 猥亵；污言秽语 | shouted obscenities at the referee | public obscenity |
| obscure (adj.) | /əbˈskjʊə(r)/ | 晦涩的；不出名的 | an obscure literary reference | an obscure author |
| obscurity (n.) | /əbˈskjʊərəti/ | 默默无闻；晦涩 | lived in obscurity for years | fade into obscurity |
| obsequious (adj.) | /əbˈsiːkwiəs/ | 谄媚的 | an obsequious waiter eager to please | obsequious flattery |
| observance (n.) | /əbˈzɜːvəns/ | 遵守；仪式 | strict observance of the rules | religious observance |
| obsolescence (n.) | /ˌɒbsəˈlesns/ | 过时；淘汰 | criticized for planned obsolescence | built-in obsolescence |
| obsolete (adj.) | /ˈɒbsəliːt/ | 过时的 | obsolete technology no longer used | rendered obsolete |
| obstinate (adj.) | /ˈɒbstɪnət/ | 固执的 | an obstinate child who refused to listen | an obstinate refusal |
| obstreperous (adj.) | /əbˈstrepərəs/ | 吵闹难控制的 | an obstreperous crowd at the gate | obstreperous behaviour |
| obtuse (adj.) | /əbˈtjuːs/ | 迟钝的 | Don't be so obtuse about it. | wilfully obtuse |
| obviate (v.) | /ˈɒbvieɪt/ | 消除；避免 | steps taken to obviate the need for delay | obviate the need for |
| ode (n.) | /əʊd/ | 颂歌 | wrote an ode to joy | an ode to nature |
| odyssey (n.) | /ˈɒdəsi/ | 长途冒险历程 | an epic odyssey across the continent | a personal odyssey |
| officious (adj.) | /əˈfɪʃəs/ | 多管闲事的 | an officious clerk demanding paperwork | an officious manner |
| oligarchy (n.) | /ˈɒlɪgɑːki/ | 寡头政治 | ruled by a small oligarchy | a corrupt oligarchy |
| omen (n.) | /ˈəʊmən/ | 预兆 | a bad omen for the journey ahead | a good omen |
| ominous (adj.) | /ˈɒmɪnəs/ | 不祥的 | ominous clouds gathering overhead | an ominous silence |
| omission (n.) | /əˈmɪʃn/ | 遗漏 | a glaring omission in the report | a significant omission |
| omnipotence (n.) | /ɒmˈnɪpətəns/ | 全能 | claims of divine omnipotence | absolute omnipotence |
| omniscience (n.) | /ɒmˈnɪsiəns/ | 全知 | attributed omniscience to the deity | divine omniscience |
| onerous (adj.) | /ˈəʊnərəs/ | 繁重的 | an onerous task few wanted | onerous duties |
📌 *obstinate*（固执的，一般用词）跟 *obdurate*（固执的，更书面，常带负面色彩指拒绝改变、冷酷）意思接近，写作时 obdurate 语气更重，常修饰拒绝道歉/妥协的态度。
Sources
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