erratic

US /ɪˈræt̬.ɪk/
UK /ɪˈræt̬.ɪk/
"erratic" picture
1.

onregelmatig, grillig, wispelturig

not regular or consistent in movement, behavior, or quality

:
His breathing was shallow and erratic.
Zijn ademhaling was oppervlakkig en onregelmatig.
The car's engine was making erratic noises.
De motor van de auto maakte onregelmatige geluiden.