in.ac.tive
adj.（形容词）Not active or tending to be active.不活动的：不活跃的或倾向于不活跃的
Not functioning or operating; out of use:暂停不用的：不起作用或不运转的；不用的：例句：inactive machinery.暂停不用的机器
Not being in continuous use or operation:不常用的：未连续使用或操作的：例句：an inactive brokerage account.不常用的佣金帐户
Retired from duty or service.退休的：从某种职务或服务中退休的Chemistry Not readily participating in chemical reactions.【化学】 无活性的：化学反应中无活性的Biology Having no significant effect on or interaction with living organisms.【生物学】 在生物器官上没有显著作用或反应的Medicine Quiescent. Used especially of a disease.【医学】 静止的：静止的。尤指一种疾病Physics Showing no optical activity in polarized light.【物理学】 无旋光的：极化光下无光学反应的
【引伸】
inac.tively
adv.（副词）in.activ.ity 或
inac.tiveness
n.（名词）<参考词汇><同义词>inactive,idle,inert,passive,dormant,torpid,supineThese adjectives mean not involved in or disposed to activity.这些形容词均意味着不参与或进行活动的。 Inactive simply indicates absence of activity: Inactive 仅指没有活动： 例句：retired but not inactive;虽退休但并不闲散的；
例句：an inactive and unhappy life;懒散而不幸福的生活；
例句：an inactive factory.不运转的工厂。
Idle refers to persons who are doing nothing or are not busy,as through unemployment or choice ( Idle 指人们不做任何事情或不忙的，如因失业或出于自己的选择( 例句：employees idle because of the strike;罢工使得雇员们无事可做；
例句：can`t bear being idle); it also refers to what is not in use or operation ( 忍受不了无事可作)； 还指未被使用或操作的(
例句：idle machinery;闲置不用的机器；
例句：idle hands). 闲散人员)。
Inert describes things powerless to move themselves or to produce a desired effect ( Inert 描写事物无力移动自身或无法实现某种期望的结果的( 例句：an inert mass of soil); applied to persons, it implies lethargy or sluggishness,especially of mind or spirit: 一片无活性的土壤)； 用于人，意味着无生气或懒惰的，尤指在心态或精神上：
例句：.The Honorable Mrs. Jamieson . . . was fat and inert, and very much at the mercy of her old servants. (Elizabeth C. Gaskell)..高贵的贾米逊夫人…身材肥胖，行动迟钝，非常需要她的老仆人们的帮助 （伊丽莎白·C·盖斯凯尔）。
Passive implies being acted on by external force or provocation without reacting positively: Passive 指由外力或外部刺激引发行动而不积极反应的： 例句：.in an hour like this, when the mind has a passive sensibility, but no active strength. (Nathaniel Hawthorne). .在这样一个小时内，内心虽被触动，却没有产生积极的力量. （纳塞内尔·霍桑）。
例句：.Much benevolence of the passive order may be traced to a disinclination to inflict pain upon oneself. (George Meredith)..人的许多被动的善行是源于不愿给自己造成痛苦. （乔治·梅雷迪斯）。
Dormant refers principally to a state of suspended activitybut often implies the possibility of renewal: Dormant 主要指暂停活动的状态，但常含有恢复活动的可能性： 例句：Her feelings of affection are dormant but easily awakened..她的钟爱之情蛰伏着但很容易被唤醒。
Torpid suggests sluggishness or apathy: Torpid 指懒散或冷漠： 例句：.It is a man`s own fault, it is from want of use, if his mind grows torpid in old age. (Samuel Johnson)..一个人老的时候如果因为很少使用头脑而使它变得麻木，那是他自己的过错. （萨缪尔·约翰逊）。
Supine implies abject lack of will, as that resulting from indifference: Supine 指无耻地缺乏意志,如由于漠不关心而产生： 例句：.No other colony showed such supine, selfish helplessness in allowing her own border citizens to be mercilessly harried. (Theodore Roosevelt)..没有一个别的殖民地在自己边界上的居民被无情地蹂躏时能表现出这样一种苟安的、自私的无助. （希奥多·罗斯福）
