impalpable a 无法触及的;不易理解的 =im+palp+abel
impart v 传授,告知 =im+part
impartial a 公平的,无私的 =im+part+ial
impasse n 僵局;死路 =im+pass+e
impassioned a 慷慨激昂的 =im+passion+ed
impassive a 无动于衷的,冷漠的 =im+pass+ive
impeach v 指责;弹劾 =im+peach
impeccable a 无瑕疵的 =im+pec+cable
impecunious a 不名一文的,贫困的 =im+pecun+ious
impede v 妨碍 =im+pede
impediment n 妨碍,阻碍物 =im+pedi+ment
impel v 推进;驱使 =im+pel
impending a行将发生的,逼近的 =im+pend+ing
impenetrable a 不能穿透的;不可理解的 =im+penetr+able
impenitent a 不悔悟的 =im+pen+itent
imperative a 急需的 =imper(empire)+at+ive
imperial a 帝王的,至尊的 =imper+ial
imperious a 傲慢的,专横的 =imper+ious
impermanent a 暂时的 =im+perman+ent
impermeability n 不能渗透 =im+perme+ablity
impermeable a 不可渗透的,透不过的 =im+perme+able
impersonate v 模仿;扮演 =im+person+ate
impertinence n 无礼,粗鲁 =im+pert+inence
imperturbable a 冷静的,沉着的 =im+pert+urbable
impervious a 不能渗透的;不为所动的 =im+perv+ious
impetuous a 冲动的,鲁莽的 =im+pet+uous
impetus n 推动力;刺激 =im+pet+us
impinge v 侵犯;撞击 =im+pinge(pact)
implant v 注入;灌输 =im+plant
implausible a 难以置信的 =im+plaus+ible
implement n 工具,器具;v 实现,实施 =im+plement
implicate v 牵连(于罪行中) =im+plic+ate
implication n 暗示 =im+plic+ation
implicit a 含蓄的,不言而喻的 =im+plic+it
implode v 内爆;剧减 =im+plode
implore v 哀求,恳求 =im+plore
impolitic a 不智的,失策的 =im+polit+ic
imponderable a 无法衡量的 =im+pond+erable
import n/v 进口,输入;意义 =im+port
importune v 强求,不断请求 =im+port+une
impose v 征税;强加 =im+pose
imposing a 壮丽的,雄伟的 =im+pose
impostor n 冒充者,骗子 =im+post+or
imposture n 冒充 =im+post+ure
impoverish v 使成赤贫 =im+pover+ish
imprecise a 不精确的,不严密的 =im+precise
impregnable a 攻不破的,征服不了的 =im+pregn+able
impresario n(剧院或乐团等)经理人,主办者=im+presario
impressed a 被打动的;被感动的 =im+press+ed
impression n 印象,感想;盖印,压痕 =im+press+ion
impressionable a 易受影响的 =impression+able
imprint v 盖印,刻印 =im+print
impromptu a 即席的,即兴的 =im+prompt+u
improvident a 无远见的,不节俭的 =im+provid+ent
improvise v 即席而作 =im+provise
improvised a 临时准备的,即席而作的 =im+provise+ed
imprudent a 轻率的;不智的 =im+prudent
impudent a 鲁莽的,无礼的 =im+pudent
impugn v 指责,对…表示怀疑=im+pugn(to fly)
impuissance n 无力,虚弱 =im+puiss(power)+ance
impulse n 冲动;刺激 =im+pulse
impulsive a 易冲动的 =im+puls+ive
impunity n 免除惩罚 =im+pun+ity
inadvertence n 漫不经心 =in+advert+ence
inadvertently adv 不小心地,非故意地 =in+advert+ently
inalienable a 不可剥夺的 =in+alien+able
inane a 无意义的;空洞的
inanimate a 无生命的 =in+anim+ate
inappreciable a 微不足道的 =in+appreci+able
inaugural a 就职的,开幕的 =in+augur+al
inaugurate v 举行就职典礼;开创 =inaugur+ate
inborn a 天生的,天赋的 =in+born
incandescence n 白炽,炽热发光 =in+cand+escence
incantation n 咒语 =in+cant+ation
incarcerate v 下狱,监禁 =in+carc(prison an enclosedplace)+arate
incarnate a 具有肉体的;化身的 =in+carn+ate
incendiary a 放火的,纵火的 =in+cendi+ary
incense n 香,香味;v 激怒 =in+cens+e
incentive n 刺激,鼓励;刺激因素 =in+cent+ive
inception n 开端,开始;取得学位 =in+cept+ion
incessant a 无间断的,连续的 =in+cess+ant
inch v 慢慢前进,慢慢移动 Inch and ounce both meanetymologically ‘one twelfth’
inchoate a 刚开始的;未发展的 =in+cho+ate
incidence n 事情发生;发生率 =in+cid+ence
incinerate v 焚化,毁弃 =in+ciner(sinter)+ate
incipient a 初期的,刚出现的 =in+cip+ient
incise v 切,切割 =in+cise
incision n 切口;切割 =in+cis+ion
incisive a 一针见血的 =in+cis+ive
incite v 激发,刺激 =in+cite
inclement a(天气)严酷的;严厉的=in+clem+ent
inclusive a 包含一切的,范围广的 =inclus+ive
incogitant a 无思想的,考虑不周的 =in+cog+itant
incommensurate a 不成比例的,不相称的 =in+commensur+ate
incompatible a 不能和谐共存的 =in+compatible
incompetent a 无能力的,不能胜任的 =im+competent
incongruity n 不协调,不相称 =in+congruity
inconsequential a 不重要的,微不足道的 =in+consequential
inconstancy n(指人)反复无常=in+constancy
incontrovertible a 无可辩驳的 =in+controvert+ible
incorporate v 合并,并入 =in+corporate
incorrigibility n 无可救药 =in+corrigibility
incorrigible a 积习难改的,不可救药的 =in+corrigible
incorruptible a(道德上)不受腐蚀的=in+corruptible
incredulity n 怀疑,不相信 =incred+ulity
increment n 增值,增加 =incre+ment
incriminate v 连累,牵连 =in+crimin+ate
incubate v 孵化,伏期=in+cub+ate
incubation n 孵卵期;潜伏期 =in+cub+ation
incubator n 孵卵器;早产婴儿保育箱 =in+cub+ator
incubus n 恶梦;梦魇般的精神压力,负担 =in+cub+us
inculcate v 灌输,谆谆教诲 =in+culc+ate
inculpate v 连累;控告;归咎于 =in+culp+ate
incumbent n 在职者,现任者;a义不容辞的=in+cumb+ent
incur v 招惹=in+cur
indebted a 感激的,感恩的=in+debet+ed
indecipherable a 无法破译的 =in+de+ciph+er+able
indecisive a 非决定性的,迟疑不决的 =in+decis+ive
indefatigable a 不知疲倦的 =in+de+fatig+able
indelible a 擦拭不掉的,不可磨灭的 =in+del(delete)+able
indemnify v 赔偿,偿付 =in+demn+ify
indemnity n 赔偿;保证 =in+demn+ity
indent v 切割成锯齿状 =in+dent
indenture n 契约,合同 =in+dent+ure
indeterminate a 不确定的,不明确 =in+determin+ate
indicate v 显示,指出;象征 =in+dic+ate
indicative a 暗示的 =indic+ative
indices n 指数 =in+dic+es
indict v 控诉,起诉 =in+dict
indifferent a 不感兴趣的,漠不关心的 =in+different
indigence n 贫穷 =in+di+gen+ce
indigenous a 土产的,本地的 =indigen+ous
indigent a 贫穷的,贫困的 =indigent
indignant a 愤慨的,愤愤不平的 =in+dign+ant
indignation n 愤慨 =in+dign+ation
indignity n 侮辱,轻蔑;侮辱性的言行 =in+dign+ity
indispensability n 不可缺少 =in+dispens+ability
individual a 单独的,特有的;n个人,个体=in+divid+ual
indoctrinate v 教导;灌输思想 =in+doctr+inate
indolent a 懒惰的 =in+dol+ent
indubitable a 不容置疑的 =in+dub+itable
induce v 诱导;引起 =in+duce
induct v 使就职;使入伍 =in+duct
induction n 就职,入伍仪式;归纳 =in+duct+ion
indulge v 放纵;满足 =in+dulge
indurate v 使坚硬;使习惯于 =in+dur+ate
industrious a 勤劳的,勤勉的 =industry+ious
ineffable a 妙不可言的 =in+ef+fable
ineffectual a 无效的,徒劳无益的 =in+effect+ual
inelasticity n 无弹性,无伸缩性 =in+elast+icity