Temporary
permanent
The opposite could be temporary, interim, or brief.
if you meant permanent then the opposite would be temporary :)
The opposite of temporary is permanent. Therefore, the analogy would be completed by saying "permanent" for the word that is the opposite of durable.
The opposite of interim (temporary) could be permanent or regular (position).
The opposite of "permanent" is "temporary." Temporary refers to something that is not meant to last for a long period of time, unlike permanent which indicates something lasting or intended to last indefinitely.
Antonyms of the word "temporary" could be permanent, perpetual, eternal, or everlasting.
transient, irresolute, lazy, relenting, surrendering, yielding, temporary
The opposite of Lasting is Ceasing, ending, fleeting, passing, short-lived, temporary or transient. http://thesaurus.reference.com/
The opposite of chronic pain could be acute pain.The opposite of chronic (continuing, recurrent) could be temporary or transient.acute
Ephemeral, evanescent, fleeting, fugacious, impermanent, temporal, temporary, transient, or transitory.