održiv

1. (of development, economy, environment) sustainable
   Grad mora da ulaže u održiv javni prevoz. — The city has to invest in sustainable public transport.
   Održivi razvoj je glavna tema konferencije. — Sustainable development is the main topic of the conference.
2. (of a plan, position, argument) viable; tenable
   Takva situacija dugoročno nije održiva. — In the long run, this situation isn't sustainable.
   Njegov argument više nije održiv. — His argument is no longer tenable.

Very common in the phrase "održivi razvoj" (sustainable development).