indispensable

/ɛ̃.dis.pɑ̃.sabl/
1.
adjectiveSing

essential

necessary

vital

Mon téléphone est devenu indispensable pour bosser.

My phone has become essential for working.

2.
nounmasculineSing

the essentials

the necessities

the bare minimum (things one needs)

Prends juste l'indispensable pour le week-end.

Just take the essentials for the weekend.