Synonyms can include strength, health, vitality, hardiness, robustness, or sturdiness.
But for people, there is usually a connotation of being energetic, as in energy and enthusiasm.
Vigorous means strong. So energetic.
Vigorous.
Other words for strong or vigorous are robust or active.
There is no prefix in the word "vigorous".
not deadbeing alive?, I guess
No, the word 'trenchantly' is an adverb, a word that modifies a verb, an adjective, or another adverb as in a vigorous and effective manner. The noun form is trenchancy.
Vigorous means powerful and energetic. My dad is very vigorous because he's gotten a lot of muscle.
robust
Working on the house in 100 degree weather was vigorous work.
vigorous
Robust
1. full of or characterized by vigor: a vigorous effort.2. strong; active; robust: a vigorous youngster. 3. energetic; forceful: vigorous steps; a vigorous personality.4. powerful in action or effect: vigorous law enforcement.5. growing well, as a plant.
1. full of or characterized by vigor: a vigorous effort.2. strong; active; robust: a vigorous youngster. 3. energetic; forceful: vigorous steps; a vigorous personality.4. powerful in action or effect: vigorous law enforcement.5. growing well, as a plant.