ignore，disregard，defy，blink，in defiance of ；

[例句] 他强烈批评那些无视莎士比亚的自诩为教育专家的人。 He fiercely criticised self-styled educational experts for ignoring Shakespeare.

[例句] 他无视传统基督教的肉体与灵魂的二元论。 He ignores the traditional Christian dualism between body and soul.

anaerobic ；

[例句] 这是无氧时所得能量的19倍. This is 19 times the energy obtainable under anaerobic circumstances.

[例句] 光谱测量用的乳胶应贮存在干燥 、 无氧的环境中. Spectroscopic emulsion should be stored in a dry, oxygen - free environment.

unprofitable，useless，no good，burn daylight，futility ；

[例句] 鉴于这些事实, 继续下去似乎是无益的. In view of the facts, It'seems useless to continue.

[例句] 贪婪之徒,与世无益,尤害自身. A covetous man is good to none but worse to himself.

ignorant，emptiness，ignorance，innocence，nescience ；

[例句] 人们的无知会带来恐惧，对未知事物的恐惧。 Ignorance of people brings fear, fear of the unknown.

[例句] 人们不喜欢问问题，害怕自己会显得很无知。 People don'tlike to ask questions for fear of appearing ignorant.

fearless，dauntless，unscared，unafraid，impavidity ；

[例句] 我不能判定他到底是英勇无畏还是精神失常。 I couldn't decide whether he was incredibly brave or just insane.

[例句] 全镇的人都英勇无畏地投入了这场战争。 The town responded gallantly to the War.

bored，jabberwocky，vacuity，yawnful，[电影]Humdrum；

[例句] 他喋喋不休地说着某个无聊的电视连续剧。 He was carrying on about some stupid television series.

[例句] 但弗雷德觉得很无聊，想要回家。 But Fred was bored and desired to go home.

unreasonable，unjustifiable ；

[例句] 她获判5,000英镑，作为遭到无理解雇的补偿。 She was awarded £5,000 in compensation for unfair dismissal.

[例句] 他当时的无理情有可原。 His rudeness was forgivable in the circumstances.

anthracite，anthracite coal，anthraciferous coal，kilkenny coal，blind coal ；

[例句] 到无烟煤阶段,有机态微量元素含量进一步降低. The organic affinity of trace elements decreases further in anthracite.

[例句] 尤其是针对无烟煤, 采用离线型CDC分解炉更为合理. To anthracite, adopting off - line type CDC calciner is more reasonable.

rude，ungracious，indignity，uncourteous，discourtesy ；

[例句] 他们不能这样无礼地对待亲生母亲。 They shouldn't treat their mother in this disrespectful way.

[例句] 她称他的话不负责任、具煽动性且极端无礼。 She described his remarks as irresponsible, inflammatory and outrageous.

[数] irrational number，irrational ；

[例句] 无理数的逻辑主义是颇有些不自然的. The logical definition of the irrational number is rather sophisticated.

[例句] 有理数与无理数一起构成实数. Rational numbers and irrational numbers together form the set of real numbers.

unable，incapable，cannot ；

[例句] 成功无法保证，并非唾手可得。成功必须靠自己去争取。 Success is not guaranteed. It is not handed to you. Success is earned.

[例句] 该国内地的很多地区无法即时报告艾滋病病例。 Many areas in the country'sinterior are unable to report Aids cases immediately.

merciless，ruthless，heartless，inexorable，callosity；

[例句] 母亲的声音是他很熟悉的：冰冷、无情。 His mother's voice was one he knew; ice cold and deadly.

[例句] 他仍然因出身低微而被人无情嘲笑。 He is still the butt of cruel jokes about his humble origins.

lack strength，feel weak，unable，incapable，atony ；

[例句] 冬季会让人感觉疲乏无力。 Winter weather can leave you feeling fatigued and tired.

[例句] 由于无力偿还1.14亿英镑的贷款担保，他被宣布破产。 He was declared bankrupt after failing to pay a £114m loan guarantee.

incompetent，incapable，crippledom，cripplehood，disability ；

[例句] 马特软弱无能且依赖性强，但我们照样爱他。 Matt is weak and dependent, but you love him all the same.

[例句] 懒惰兼无能的警官令公众失望。 Lazy and incompetent police officers are letting the public down.

innumerable，countless，infinity，myriad，incalculability ；

[例句] 裙子上点缀着无数亮闪闪的小圆片。 The frocks were covered in sequins, thousands of them.

[例句] 无数的是非颠倒使过去的岁月伤痕累累。 The past has been scarred by countless perversions of justice.

no matter what, how, etc.，regardless of，no matter what，soever，whether ；

[例句] 达尔文的语言无论对专家还是非专业人士而言都明白易懂。 The language of Darwin was intelligible to experts and non-experts alike.

[例句] 无论延伸多长，平行线永不相交。 Parallel lines will never meet no matter how far extended.

tasteless，unpalatable，dull，insipid，insipidity ；

[例句] 今天的早餐会让首相感觉全然无味。 Breakfast will be a cheerless affair for the Prime Minister this morning.

[例句] 威斯敏斯特的许多工作非常枯燥无味令人厌烦。 A lot of the work was very dry and boring in Westminster.

[数] infinitesimal，infinitely small，indefinitely small ；

[例句] 牛顿说他已放弃了微元或无穷小量. Newton says he has abandoned the infinitesimal or infinitely small quantity.

[例句] 定理1与是等阶无穷小的充分必要条件为. Theorem 1 and are equivalent infinitesimals if and only if.

non-toxic，non-poisonous，innocuity ；

[例句] 该配方及所有成分是无毒的. The composition and all its ingredients are nontoxic.

[例句] 昆虫取食了味纯和的 ( 无毒的 ) 饲料可能表现出它们真正的生物潜能. Insects fed on a bland ( nontoxic ) diet would show their real biotic potential.

（变化不定） variable，changeable，caducity，fleetness，fugacity；

[例句] 这难道不是要求对生命的无常加以控制吗？ Isn't this a demand to control the randomness of life?

[例句] 他的见解反覆无常. He is inconsistent in his views.