parrhesiastes
From LSJ
Μισῶ σοφιστήν, ὅστις οὐχ αὑτῷ σοφός → I hate the sage who is not wise for himself → Odi professum sapere, qui sibi non sapit → Den Weisen hass' ich, der in eigner Sache Tor
Latin > English (Lewis & Short)
parrhēsĭastes: ae, m., = παρρησιαστής,
I a free-speaker, Sen. Ira, 3, 23.
