Definition of effective

competent Definition: (adjective) having the skill and knowledge needed for a particular task; capable Petersons.com

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< effect

effectively >

ef·fec·tive    (-fktv) KEY  

ADJECTIVE:

1. 1. Having an intended or expected effect.
   2. Producing a strong impression or response; striking: gave an effective performance as Othello.
2. Operative; in effect: The law is effective immediately.
3. Existing in fact; actual: a decline in the effective demand.
4. Prepared for use or action, especially in warfare.

NOUN:

A soldier or a piece of military equipment that is ready for combat: "The 'company' was no more than two platoons of effectives" (Tom Clancy).

OTHER FORMS:
ef·fective·ness or effec·tivi·ty (Noun)

SYNONYMS:
effective , effectual , efficacious , efficient

These adjectives mean producing or capable of producing a desired effect: an effective reprimand; an effectual complaint; an efficacious remedy; the efficient cause of the revolution.

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