Translation of "Erratic" in French

Mary was troubled by Tom's erratic behavior.

Marie s'inquiétait beaucoup du comportement instable de Tom.

As weather conditions across the world become increasingly erratic,

Le climat devient de plus en plus imprévisible dans le monde entier,

We had to lessen the impact of the erratic supplies.

Nous devions pallier aux approvisionnements erratiques.