Great energy, drive, force, or power; vigour of body, mind or personality; oomph or pizzazz
Dynamic reality; active energy; continuous change, progress, or activity.
Any of several philosophical theories that attempt to explain the universe by an immanent force.
Groundlessness; worthlessness; triviality; vanity; frivolity.
The state of being idle; inactivity.
The state of being indolent; indolence.