erratic
Cross references: 1. strange er.rat.ic \ir-'at-ik\ \-i-k*l\ \-i-k(*-)le-\ \-'at-*-.siz-*m\ aj [ME, fr. MF or L; MF erratique, fr. L erraticus, fr. erratus,] pp. of errare 1a: having no fixed course : WANDERING {an ~ comet} archaic 1b: NOMADIC 2: transported from an original resting place esp. by a glacier {~ boulder} 3a: characterized by lack of consistency, regularity, or uniformity 3b: deviating from what is ordinary or standard : ECCENTRIC - erratic n