1. Inconsistent, unpredictable, or irregular performance of a task, plan, or action; implementation that lacks consistency or follows no clear pattern
The team's erratic execution in the second half cost them the game.
A execução errática do time na segunda metade custou-lhes o jogo.
2. In software or systems: unreliable or unpredictable behavior during implementation or operation
The software suffered from erratic execution, crashing at random intervals.
O software sofria de execução errática, travando em intervalos aleatórios.