(transitive) To pretend to be (a different person); to assume the identity of. / (transitive, computing) To operate with the permissions of a different user account.

not permissible; not to be permitted or allowed

Unable to perceive.

In an impersonal manner.

not permanent; momentary

Of or pertaining to imperialism or imperialists; favoring imperialism.

not perishable; not subject to decay; enduring permanently

(in the plural) something that does not perish, or keeps for a long time

Lack of permanence or continued duration. / The quality or state of being impermanent. / (Buddhism) Anicca, the doctrine which asserts that all of conditioned existence is transient.

Not perforated, as: / (medicine) Synonym of atretic