Ĕn'er-ġĕt'ic or Ĕn'er-ġĕt'ic-al, a.

a. [Gr. ἐνεργητικός, from ἐνεργεῖν, to work, be active, from ἐνεργός, active, from ἐν, in, and ἔργον, work; Fr. énergique.]

1. Exerting force; showing activity; operative; active. “A being eternally energetic.” Grew.
2. Exhibiting energy; operating with force, vigor, and effect; forcible; powerful; efficacious; as, energetic measures; energetic laws.

Syn.—Forcible; powerful; efficacious; potent; vigorous; effective.