Antonyms of adj perpetual

2 senses of perpetual

Sense 1
ageless, aeonian, eonian, eternal, everlasting, perpetual, unending, unceasing -- (continuing forever or indefinitely; "the ageless themes of love and revenge"; "eternal truths"; "life everlasting"; "hell's perpetual fires"; "the unending bliss of heaven")

INDIRECT (VIA permanent) -> impermanent, temporary -- (not permanent; not lasting; "politics is an impermanent factor of life"- James Thurber; "impermanent palm cottages"; "a temperary arrangement"; "temporary housing")

Sense 2
ceaseless, constant, incessant, never-ending, perpetual, unceasing, unremitting -- (uninterrupted in time and indefinitely long continuing; "the ceaseless thunder of surf"; "in constant pain"; "night and day we live with the incessant noise of the city"; "the never-ending search for happiness"; "the perpetual struggle to maintain standards in a democracy"; "man's unceasing warfare with drought and isolation"; "unremitting demands of hunger")

INDIRECT (VIA continuous) -> discontinuous, noncontinuous -- (not continuing without interruption in time or space; "discontinuous applause"; "the landscape was a discontinuous mosaic of fields and forest areas"; "he received a somewhat haphazard and discontinuous schooling")

Similarity of adj perpetual

2 senses of perpetual

Sense 1
ageless, aeonian, eonian, eternal, everlasting, perpetual, unending, unceasing -- (continuing forever or indefinitely; "the ageless themes of love and revenge"; "eternal truths"; "life everlasting"; "hell's perpetual fires"; "the unending bliss of heaven")
       => permanent (vs. impermanent), lasting -- (continuing or enduring without marked change in status or condition or place; "permanent secretary to the president"; "permanent address"; "literature of permanent value")

Sense 2
ceaseless, constant, incessant, never-ending, perpetual, unceasing, unremitting -- (uninterrupted in time and indefinitely long continuing; "the ceaseless thunder of surf"; "in constant pain"; "night and day we live with the incessant noise of the city"; "the never-ending search for happiness"; "the perpetual struggle to maintain standards in a democracy"; "man's unceasing warfare with drought and isolation"; "unremitting demands of hunger")
       => continuous (vs. discontinuous), uninterrupted -- (continuing in time or space without interruption; "a continuous rearrangement of electrons in the solar atoms results in the emission of light"- James Jeans; "a continuous bout of illness lasting six months"; "lived in continuous fear"; "a continuous row of warehouses"; "a continuous line has no gaps or breaks in it"; "moving midweek holidays to the nearest Monday or Friday allows uninterrupted work weeks")

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