Dictionary
vig•or•ous
Pronunciation: (vig'ur-us), [key]—
adj.
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.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.