effective

• "an air-cooled motor was more effective than a witch's broomstick for rapid long-distance transportation-LewisMumford"
• "effective teaching methods"
• "effective steps toward peace"
• "made an effective entrance"
• "his complaint proved to be effectual in bringing action"
• "an efficacious law"

Synonyms

• effectualproducing or capable of producing an intended result or having a striking effect; having legal efficacy or force
• efficaciousmarked by qualities giving the power to produce an intended effect; producing or capable of producing an intended result or having a striking effect

• "functioning effectively"
• "people who will do nothing unless they get something out of it for themselves are often highly effective persons...-G.B.Shaw"
• "effective personnel"
• "an efficient secretary"
• "the efficient cause of the revolution"

Synonyms

• efficientbeing effective without wasting time or effort or expense; able to accomplish a purpose

• "an effective reprimand"
• "a lotion that is effective in cases of prickly heat"

• "the law is effective immediately"
• "a warranty good for two years"
• "the law is already in effect (or in force)"

Synonyms

• good(often used as a combining form) in a good or proper or satisfactory manner or to a high standard (`good' is a nonstandard dialectal variant for `well'); completely and absolutely (`good' is sometimes used informally for `thoroughly'); benefit; moral excellence or admirableness; that which is pleasing or valuable or useful; articles of commerce ; having desirable or positive qualities especially those suitable for a thing specified; having the normally expected amount; morally admirable ; deserving of esteem and respect; promoting or enhancing well-being; agreeable or pleasing; of moral excellence; having or showing knowledge and skill and aptitude; thorough; with or in a close or intimate relationship; financially safe; most suitable or right for a particular purpose; resulting favorably; exerting force or influence; capable of pleasing; appealing to the mind; in excellent physical condition; tending to promote physical well-being; not forged; not left to spoil; generally admired
• in effect(p)
• in force(p)

• "not theoretical"
• "real"
• "a decline in the effective demand"
• "confused increased equipment and expenditure with the quantity of effective work done"

• "the fort was held by about 100 effective soldiers"