先祖返り — meaning in English

English meaning

• atavism noun The reappearance of an ancestral characteristic in an organism after several generations of absence; a throwback.
• throwback noun Something or someone that recalls or resembles an earlier era or stage.

Senses

先祖返り is used for these senses in English:

• atavism The reappearance of an ancestral characteristic in an organism after several generations of absence; a throwback.

atavism — full definition

1. noun The reappearance of an ancestral characteristic in an organism after several generations of absence; a throwback.
2. noun The recurrence or reversion to a past behaviour, method, characteristic or style after a long period of absence.
3. noun A reversion to past primitive behavior, especially violence.