certifiably
🇺🇸
/ˈsɜːrtɪfaɪəbli/
🇬🇧
/ˈsɜːtɪfaɪəbli/
Proven to be true or genuine by an official document or authority.
The doctor said that he was certifiably sane, which was a relief to everyone.
의사가 그가 정신적으로 정상이라고 증명했고, 모두를 안심시켰다.