unpredictable
US /ˌʌn.prɪˈdɪk.tə.bəl/
UK /ˌʌn.prɪˈdɪk.tə.bəl/
1.
not able to be foreseen or predicted; variable
:
•
The weather in this region is highly unpredictable.
•
His behavior has become increasingly unpredictable.
not able to be foreseen or predicted; variable