erratic
🇺🇸
/ɪˈrætɪk/
🇬🇧
/ɪˈrætɪk/
acting, moving, or changing in ways that are not expected or usual
The car's speed was erratic, making it hard to follow.
차의 속도가 변덕스러워 따라가기 어려웠다.
a big rock that's different from surrounding rocks, left behind by melting ice
The field was scattered with erratics left behind from the last Ice Age.
해당 지역은 마지막 빙하기에서 남은 방랑석으로 흩어져 있었다.