effective

effective: 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 effective in marketing its services.
— see also cost-effective

2. [not before a noun] if a law, agreement, or system becomes effective, it officially starts:

effective from

• The new rates are effective from 22 February.

3. [only before a noun] real, although not obvious or officially recognized:

• Following the takeover, they now have effective control of the German computer market.

* * *

effective UK US /ɪˈfektɪv/ adjective

► successful in achieving the result that you want: »You need a workable, effective strategy for developing your business.
»Personal charisma alone does not make someone an effective leader.
»The consumer council must have clear duties and strong powers if it is to be effective.

► having started to operate or be used: »The new Investment Management Agreements became effective on 1st November.
»He announced his resignation, effective immediately.

► [before noun] used to describe what is actually true, although it may not be intended or stated: »The remainder of the stock is owned by a consortium of banks which are in effective control of the hotel.

→ See also COST-EFFECTIVE(Cf. ↑cost-effective)

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Synonyms:

Competent, adequate, sufficient, effectual / Powerful, forcible, energetic, potent, cogent, efficacious / Operative, active, efficient

Look at other dictionaries:

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 */*/*/ — UK [ɪˈfektɪv] / US adjective 1) a) someone or something that is effective works well and produces the result that was intended You need more effective communication within the organization. Humour is often far more effective than shouting. The… … English dictionary

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