The quality or state of being perpetual; as, the perpetuity of laws.
- The quality or condition of being perpetual: "The perpetuity of the Church was an article of faith” ( Morris L. West).
- Time without end; eternity.
- Law The condition of an estate that is limited so as to be inalienable either perpetually or longer than the period determined by law.
- Law An estate so limited.
- An annuity payable indefinitely.
- in perpetuity For an indefinite period of time; forever.