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Webster 1913 Edition

Adj.

Not repealable; not capable of being repealed or revoked, as a law.

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Irˊre-peal′a-ble-ness

Noun.

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Irˊre-peal′a-bly

adv.

Adj.

[in and repealable. See Repeal.]

That cannot be legally repealed or annulled.