1. (adj)vigorous 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. (adj)vigorous strong and active physically or mentally "a vigorous old man who spent half of his day on horseback"- W.H.Hudson
Definition of 'vigorous' 
