characterized by forceful and energetic action or activity; "a vigorous hiker"; "gave her skirt a vigorous shake"; "a vigorous campaign"; "a vigorous foreign policy"; "vigorous opposition to the war"力強くてエネルギッシュな行為か活動で、特徴付けられる精力的
例:a vigorous campaign 活発なキャンペーン
strong and active physically or mentally; "a vigorous old man who spent half of his day on horseback"- W.H.Hudson物理的に精神的に強く活動的な雄健
例:a vigorous old man who spent half of his day on horseback- W.H.Hudson その活発な老人は、馬の上で、半生を過ごした?W.H.ハドソン