1. An irregular, unpredictable, or wandering route or trajectory with no clear direction
The meteor's erratic path across the sky puzzled astronomers.
O percurso errático do meteoro pelo céu desconcertou os astrônomos.
2. A course of action or life journey characterized by inconsistency and lack of clear purpose
His erratic course through different careers showed no long-term planning.
Seu percurso errático por diferentes carreiras demonstrava falta de planejamento de longo prazo.