in·de·ter·min·ism 
(ĭn′dĭ-tûrmə-nĭz′əm)
(ĭn′dĭ-tûrmə-nĭz′əm)n.
1. Unpredictability.
2. Philosophy The doctrine that there are events, particularly free human actions or decisions, that have no cause or are not caused deterministically.
in′de·termin·ist n.
in′de·ter′min·istic adj.