イフェクティブ

(1)producing or capable of producing an intended result or having a striking effect; "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"

(2)意図した結果を創出しまたは創出することができ、または顕著な効果を生み出す

(3)works well as a means or remedy; "an effective reprimand"; "a lotion that is effective in cases of prickly heat"

(4)手段または治療としてよく働く

(1)an effective reprimand

(2)有効な叱責

(3)a lotion that is effective in cases of prickly heat

(4)あせもの事例に効果的であるローション