vig ‧ o ‧ rous /ˈvɪɡərəs/ BrE AmE adjective
1 . using a lot of energy and strength or determination:
Your dog needs at least 20 minutes of vigorous exercise every day.
Environmentalists have begun a vigorous campaign to oppose nuclear dumping in the area.
a vigorous debate
Vigorous efforts are being made to find a solution to the problem.
The measures provoked vigorous opposition in right-wing circles.
2 . strong and healthy:
a vigorous young man
—vigorously adverb