I. adjective Date: 14th century 1. a. producing a decided, decisive, or desired effect <
an effective policy
b. impressive, striking <
a gold lamé fabric studded with effective…precious stones — Stanley Marcus
2. ready for service or action <
effective manpower
3. actual <
the need to increase effective demand for goods
4. being in effect ; operative <
the tax becomes effective next year
5. of a rate of interest equal to the rate of simple interest that yields the same amount when the interest is paid once at the end of the interest period as a quoted rate of interest does when calculated at compound interest over the same period — compare nominal 4 • effectiveness nouneffectivity noun Synonyms: effective, effectual, efficient, efficacious mean producing or capable of producing a result. effective stresses the actual production of or the power to produce an effect <
an effective rebuttal
. effectual suggests the accomplishment of a desired result especially as viewed after the fact <
the measures to stop the pilfering proved effectual
. efficient suggests an acting or a potential for action or use in such a way as to avoid loss or waste of energy in effecting, producing, or functioning <
an efficient small car
. efficacious suggests possession of a special quality or virtue that gives effective power <
a detergent that is efficacious in removing grease
. II. noun Date: 1722 one that is effective; especially a soldier equipped for duty

New Collegiate Dictionary. 2001.


Look at other dictionaries:

  • effective — ef‧fec‧tive [ɪˈfektɪv] adjective 1. working well and producing the result or effect that was wanted or intended: • The company mounted a very effective publicity campaign. • The 7% increase in sales shows that the company has become more… …   Financial and business terms

  • effective — effective, effectual, efficient, efficacious all mean producing or capable of producing a result or results, but they are not freely interchangeable in idiomatic use. Effective emphasizes the actual production of an effect or the power to produce …   New Dictionary of Synonyms

  • effective — ef·fec·tive adj 1: producing a desired effect an effective revocation of the contract 2: capable of bringing about an effect effective assistance of counsel see also ineffective assistance o …   Law dictionary

  • effective — effective, effectual, efficacious, efficient 1. All these words mean ‘having an effect’ of some kind, but with different applications and shades of meaning. Effective means ‘having a definite or desired effect’ that is actual rather than… …   Modern English usage

  • Effective — Ef*fect ive, a. [L. effectivus: cf. F. effectif.] Having the power to produce an effect or effects; producing a decided or decisive effect; efficient; serviceable; operative; as, an effective force, remedy, speech; the effective men in a regiment …   The Collaborative International Dictionary of English

  • Effective — Ef*fect ive, n. 1. That which produces a given effect; a cause. Jer. Taylor. [1913 Webster] 2. One who is capable of active service. [1913 Webster] He assembled his army 20,000 effectives at Corinth. W. P. Johnston. [1913 Webster] 3. [F. effectif …   The Collaborative International Dictionary of English

  • effective — [e fek′tiv, ifek′tiv; ] often [ ēfek′tiv, əfek′tiv] adj. [ME & OFr effectif < L effectivus] 1. having an effect; producing a result 2. producing a definite or desired result; efficient 3. in effect; operative; active 4. actual, not merely… …   English World dictionary

  • effective — late 14c., from Fr. effectif, from L. effectivus productive, effective, from effect , stem of efficere (see EFFECT (Cf. effect)). Effectively in the sense of actually is attested by 1650s. Related: Effectivity …   Etymology dictionary

  • effective — [adj1] productive, persuasive able, active, adequate, capable, cogent, compelling, competent, convincing, direct, effectual, efficacious, efficient, emphatic, energetic, forceful, forcible, having lead in pencil*, impressive, live, moving, on the …   New thesaurus

  • effective — ► ADJECTIVE 1) producing a desired or intended result. 2) (of a law or policy) operative. 3) existing in fact, though not formally acknowledged as such. DERIVATIVES effectively adverb effectiveness noun effectivity noun …   English terms dictionary

  • effective — ef|fec|tive [ ı fektıv ] adjective *** 1. ) someone or something that is effective works well and produces the result that was intended: Humor is often far more effective than shouting. You need effective communication within the organization.… …   Usage of the words and phrases in modern English

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