late 14c., "wandering, moving," from Old French erratique "wandering, vagrant" (13c.) and directly from Latin erraticus "wandering, straying, roving," from erratum "an error, mistake, fault," past participle of errare "to wander, err" (see err). Sense of "irregular, eccentric" is attested by 1841. The noun is from 1620s, of persons; 1849, of boulders. Related: Erratically.
实用例句
1. Douglas was a 29-year-old journeyman fighter, erratic in his previous fights.
道格拉斯29岁，是个技术不错的拳击手，在以前的比赛中发挥不太稳定。
来自柯林斯例句
2. Argentina's erratic inflation rate threatens to upset the plans.
阿根廷动荡不定的通货膨胀率可能会破坏那些计划。
来自柯林斯例句
3. Businessmen are displeased with erratic economic policy-making.