To be honest I'd focus on basic grammar before adding words such as vigorous.
Vigorous means powerful and energetic. My dad is very vigorous because he's gotten a lot of muscle.
I enjoy vigorous exercise like mountain climbing.
When making a mixed drink, it is advisable to shake the beverage along with crushed ice in a vigorous fashion. John completes all duties in a vigorous manor.
He runs very vigorously in a race.
The perspiration was dripping off my brow.
Melissa is such a strong vigorous mettlesome woman with her snapping blue eyes.
After vigorous workout, he was breathing heavily and sweat covered his face.Despite a vigorous effort, he wasn't able to outrun his opponent.I was looking forward to a casual stroll, but he walked at a vigorous pace.I took a vigorous course in calculus last year.The water ripped through the rocks vigorously, as the rapids steadily contributed more hydrolic power.
Dynamism is a vigorous or forceful quality. An example sentence would be: His dynamism was probably what got him the job.
asiasbuu
There is no prefix in the word "vigorous".
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.
Other words for strong or vigorous are robust or active.