A condition characterized by extreme fatigue or drowsiness, deep unresponsiveness, or prolonged sleep patterns.
A state of extreme torpor or apathy, especially with lack of emotion, energy or enthusiasm; (loosely) sluggishness, laziness.
The intensity of a force or power; potency.
The quality or degree of being strong.
The strongest part of something; that on which confidence or reliance is based.
A positive attribute.