erratic
01
予測不可能な, 気まぐれな
having a strong potential for sudden variations or fluctuations that cannot be predicted
例
His erratic behavior at the meeting made everyone uncomfortable.
会議での彼の不安定な行動は、誰もが不快に感じさせた。
例
The erratic movement of the pendulum made it difficult to measure time accurately.
振り子の不規則な動きは、時間を正確に測ることを難しくした。
