单词 | effective |
释义 | effective —effectively, adv. —effectiveness, effectivity, n. /i fek"tiv/, adj. 1. adequate to accomplish a purpose; producing the intended or expected result: effective teaching methods; effective steps toward peace. 2. actually in operation or in force; functioning: The law becomes effective at midnight. 3. producing a deep or vivid impression; striking: an effective photograph. 4. prepared and available for service, esp. military service. n. 5. a member of the armed forces fit for duty or active service. 6. the effective total of a military force. [1350-1400; ME < L effectivus practical, equiv. to effect(us), ptp. of efficere (see EFFECT) + -ivus -IVE] Syn. 1. capable, competent. EFFECTIVE, EFFECTUAL, EFFICACIOUS, EFFICIENT refer to that which is able to produce a (desired) effect. EFFECTIVE is applied to that which has the power to, or which actually does, produce an effect: an effective action, remedy, speech. EFFECTUAL is used esp. of that which produces the effect desired or intended, or a decisive result: An effectual bombardment silenced the enemy. EFFICACIOUS suggests the capability of achieving a certain end: an efficacious plan, medicine. EFFICIENT (applied also to persons) implies the skillful use of energy or industry to accomplish desired results with little waste of effort: efficient methods; an efficient manager. 2. operative. 3. telling. Ant. 1. futile, useless. |
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