atavistic
🇺🇸
/ˌætəˈvɪstɪk/
🇬🇧
/ˌætəˈvɪstɪk/
adjective
R
A trait or behavior that resembles those found in ancient ancestors and has been passed down through generations.
The atavistic fear of the dark is common among humans.
对黑暗的原始恐惧在人类中很常见。
translation
返祖的