unpredictable

the quality of being guided by sudden unpredictable impulses

n a possibility due to a favorable combination of circumstances n an unknown and unpredictable phenomenon that causes an event to result one way rather than another n a risk involving danger n a measure of how likely it is that some event will occur

completely unordered and unpredictable and confusing a

uncontrolled motion that is irregular or unpredictable

liable to sudden unpredictable change s