erratic

ot noun

1. A rock moved from one location to another, usually by a glacier.
2. Anything that has erratic characteristics.

sifat adjective

1. Unsteady, random; prone to unexpected changes; not consistent Henry has been getting erratic scores on his tests: 40% last week, but 98% this week.
2. Deviating from normal opinions or actions; eccentric; odd. erratic conduct