効果的|こうかてきkoukateki

1. na-adjectiveeffective; successful
   その方法ほうほうは粗雑そざつなものであったが、効果的こうかてきだった。↗

   The method was crude, but very effective.

• Synonym有効ゆうこうNeutralMeans having effect or validity, as in 「有効期限」; 「効果的」 focuses on a method bringing good results.
• Related有用ゆうようNeutralMeans useful or valuable, as in 「有用な情報」; 「効果的」 highlights a method that shows results.
• Related役立つやくだつNeutralA verb meaning to be helpful or come in handy, common in speech; 「効果的」 stresses a method showing results.
• Related有益ゆうえきNeutralMeans beneficial, as in 「有益な助言」; 「効果的」 stresses a method achieving good results.
• Antonym無効むこうNeutralOpposite to 「効果的」 in whether something has effect; means invalid or void, as in 「無効票」.

Use 「効果的」 for methods or measures that bring good results, as in 「効果的な勉強法」. Use 「有効」 for having effect or validity, 「有用」 and 「役立つ」 for being useful, 「有益」 for being beneficial; the opposite is 「無効」.

Usage comparisons are AI-assisted and cross-checked by multiple models; for study reference only

1. 目めに見みえて効果こうかが現あらわれるさま。