impermanent
adjective
1. not permanent; not lasting
- politics is an impermanent factor of life
- impermanent palm cottages
Similar word(s): acting, ephemeral, fugacious, passing, transient, transitory, episodic, evanescent, improvised, makeshift, interim, shipboard, temporal, terminable, working, unstable, temporary
2. existing or enduring for a limited time only
Similar word(s): finite