egzistencijalan

1. relating to survival; of livelihood
   Mnoge porodice imaju ozbiljne egzistencijalne probleme. — Many families are struggling to make ends meet.
   Za nas je to egzistencijalno pitanje. — For us it's a matter of survival.
2. existential
   Posle četrdesete ušao je u egzistencijalnu krizu. — After forty he went through an existential crisis.

In everyday speech it usually refers to making a living and survival rather than philosophy.