Strong’s Greek
G183 — akataschetos
The entry below is Strong’s own definition (1890, public domain), and every verse where the word occurs.
akataschetos — pronounced ak-at-as'-khet-os
from 1 (as a negative particle) and a derivative of 2722; unrestrainable:--unruly. see GREEK for 1 see GREEK for 2722
1 occurrence in the KJV.
James 3:8
But the tongue can no man tame; it is an unruly evil, full of deadly poison.