effective

Describes something that successfully produces the intended result.

ruОписывает то, что успешно приводит к желаемому результату.esQue produce el efecto o resultado deseado; que funciona bien o es capaz de lograr su propósito.frDécrit ce qui produit avec succès le résultat souhaité, en étant opérationnel et en ayant un impact réel ou tangible.deBeschreibt etwas, das erfolgreich zum gewünschten Ergebnis führt, oder etwas, das tatsächlich wirksam ist und die beabsichtigte Wirkung erzielt.ptDescreve algo que produz o resultado desejado ou alcança o efeito pretendido; também pode indicar algo que está em vigor ou que realmente funciona na prática.zh形容事物能够成功地产生所期望的结果，或在实际中真正起作用。arيصف ما يؤدي بنجاح إلى تحقيق النتيجة المرغوبة. ويُستعمل أيضاً للدلالة على ما له تأثير حقيقي أو ما هو نافذ ومؤثر.

1. Successful in producing a result B1 formal

   Able to achieve a desired outcome or effect.

   • This medicine is very effective against headaches.
   • The new marketing strategy proved to be highly effective.
   • Effective communication is key to a successful team.

   ruЭффективныйeseficazfrefficacedeWirksamptEficazzh有效的arفعّال

   المرادفات: capableeffectualefficaciousfruitfulpotentproductivesuccessful

   الأضداد: futileineffectiveinefficaciousunproductiveunsuccessfuluseless

2. In operation or active B1 formal

   Starting to be used or having legal force.

   • The new law becomes effective on January 1st.
   • The contract is effective from the date of signing.
   • The policy is effective immediately.

   ruДействующийesen vigor, vigentefrEn vigueurdeIn KraftptEm vigorzh生效的arالفعّال / السّاري

   المرادفات: activebindingcurrentin effectin forceoperativevalid

3. Impressive or striking B2 informal

   Having a strong or noticeable effect.

   • The lighting in the theater was very effective.
   • She made an effective argument during the debate.
   • The use of color in the painting is highly effective.

   ruЭффектныйesEfectivo, impresionantefrFrappant / SaisissantdeeffektvollptEfetivo (impressionante)zh引人注目的arمُؤَثِّر

   المرادفات: compellingconvincingdramaticforcefulimpressivepotentpowerfulstrikingtellingvivid

   الأضداد: ineffectiveunimpressiveweak

• more effective comparative form
• most effective superlative form