(plural forces of nature)
- A mighty natural force which is beyond human control, notably if potentially castastophical, such as the elements (e.g. storms and extreme temperatures) or geological (e.g. seismic and volcanic) activity
- Myths and religions often ascribe natural forces to supernatural beings, as acts of (a) god(s) or hero(es) shaking the earth, raising a storm or flood etc.
- (figuratively) A thing or person that exhibits qualities which appear to be beyond outside control.