| a direct, sudden, and irresistible action of natural forces such as could not reasonably have been foreseen or prevented, as a flood, hurricane, earthquake, or other natural catastrophe. |
| act of God n. pl. acts of God A manifestation especially of a violent or destructive natural force, such as a lightning strike or earthquake, that is beyond human power to cause, prevent, or control. |
act of God
An unforeseen and uncontrollable natural event, such as a hurricane, fire, or flood. For example, The publisher shall publish the work within twelve months except in case of delay caused by acts of God such as fires or floods or other circumstances beyond its control. It most often appears in legal contracts, where it is used to indemnify one party against a disaster that prevents it from carrying out the contract's terms. [Mid-1800s]