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n. The quality or condition of being perpetual: "The perpetuity of the Church was an article of faith” ( Morris L. West).

n. Time without end; eternity.

n. Law The condition of an estate that is limited so as to be inalienable either perpetually or longer than the period determined by law.

n. Law An estate so limited.

n. An annuity payable indefinitely.

idiom. in perpetuity For an indefinite period of time; forever.

n. The quality or state of being perpetual; endless duration; uninterrupted existence.

n. Something that is perpetual.

n. A limitation intended to be unalterable and of indefinite duration; a disposition of property which attempts to make it inalienable beyond certain limits fixed or conceived as being fixed by the general law.

n. An annuity in which the periodic payments begin on a fixed date and continue indefinitely.

n. The quality or state of being perpetual.

n. Something that is perpetual.

n. Endless time.

n.

n. The number of years in which the simple interest of any sum becomes equal to the principal.

n. The number of years' purchase to be given for an annuity to continue forever.

n. A perpetual annuity.

n.

n. Duration without limitations as to time.

n. The quality or condition of an estate by which it becomes inalienable, either perpetually or for a very long period; also, the estate itself so modified or perpetuated.

n. The state or character of being perpetual; endless duration; continued uninterrupted existence, or duration through the ages or for an indefinite period of time: as,the perpetuity of laws and institutions.

n. Something of which there will be no end; something lasting forever or for an indefinitely long time.

n. In law: A limitation intended to be unalterable and of indefinite duration; a disposition of property which attempts to make it inalienable beyond certain limits fixed or conceived as being fixed by the general law. Pollock.

n. Duration to all futurity; exemption from intermission or ceasing.

n. In the doctrine of annuities, the number of years in which the simple interest of any principal sum will amount to the same as the principal itself; or the number of years' purchase to be given for an annuity which is to continue forever; also, the annuity itself.

n. the property of being perpetual (seemingly ceaseless)

"The Democrat will also argue that keeping U.S. troops there in perpetuity is (a) way too expensive, given our economic troubles, (b) too taxing for our forces and (c) a diversion from the real war in Afghanistan, where perhaps another division of U.S. troops will be needed."

permanency    permanence   

in perpetuity   

constancy    eternity   

annuity    discontinuity    gratuity    incongruity   

permanence    well-being    universality    perpetuation    continuance