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WordReference Random House Learner's Dictionary of American English © 2016
ef•fec•tive /ɪˈfɛktɪv/USA pronunciation
adj. WordReference Random House Unabridged Dictionary of American English © 2016
- able to accomplish a purpose:very effective teaching methods.
- in operation or in force; functioning: The law becomes effective at midnight.
in fact but not in theory[before a noun]The militia was the effective government at the time.
- producing a deep or strong impression;
striking: an effective photograph.
(i fek′tiv), adj.
- adequate to accomplish a purpose;
producing the intended or expected result:effective teaching methods; effective steps toward peace.
- actually in operation or in force;
functioning:The law becomes effective at midnight.
- producing a deep or vivid impression; striking:an effective photograph.
- Militaryprepared and available for service, esp. military service.
- Militarya member of the armed forces fit for duty or active service.
- Militarythe effective total of a military force.
ef•fec′tive•ness, ef•fec•tiv′i•ty, n.
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.
1 . futile, useless.
- Latin effectīvus practical, equivalent. to effect(us), past participle of efficere (see effect) + -īvus -ive
- Middle English 1350–1400
Collins Concise English Dictionary © HarperCollins Publishers::
effective /ɪˈfɛktɪv/ adj
- productive of or capable of producing a result
- in effect; operative
- producing a striking impression; impressive: an effective entrance
- (prenominal) actual rather than theoretical; real
- (of a military force, etc) equipped and prepared for action
efˈfectively adv efˈfectiveness n
- a serviceman who is equipped and prepared for action
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