vigorous
adj.adj. strong, healthy, and full of energy. You use it to describe actions that require a lot of physical or mental effort.
adj. characterised by or involving great physical or mental energy, force, or health. Often describes physical exercise or the forceful pursuit of an argument.
He takes a vigorous walk every morning to stay fit.
The lawyer mounted a vigorous defense of her client, challenging every piece of evidence the prosecution presented.
While moderate activity is beneficial, vigorous exercise significantly improves cardiovascular health by pushing the heart rate into a higher training zone for sustained periods.
From Anglo-Norman vigrus, from Old French vigoros (French vigoureux), from Medieval Latin vigorosus, from Latin vigor. Doublet of vigoroso.
Typically used to modify nouns related to activity, health, or debate; often follows linking verbs like 'remain' or 'appear'.