— unpredictability, unpredictableness , n. — unpredictably , adv.
/un'pri dik"teuh beuhl/ , adj.
1. not predictable; not to be foreseen or foretold: an unpredictable occurrence.
n.
2. something that is unpredictable: the unpredictables of life.
[ 1855-60; UN- 1 + PREDICTABLE ]
Syn. 1. erratic, fitful, variable, uncertain.