vigorous

英['vɪg(ə)rəs] 美['vɪɡərəs]

1. 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"

2. strong and active physically or mentally;: "a vigorous old man who spent half of his day on horseback"- W.H.Hudson