Strong’s Greek
G4468 — rhadiourgia
The entry below is Strong’s own definition (1890, public domain), and every verse where the word occurs.
ῥᾳδιουργία
rhadiourgia — pronounced hrad-ee-oorg-ee'-a
from the same as 4467; recklessness, i.e. (by extension) malignity:--mischief. see GREEK for 4467
1 occurrence in the KJV.
Acts 13:10
And said, O full of all subtilty and all mischief, thou child of the devil, thou enemy of all righteousness, wilt thou not cease to pervert the right ways of the Lord?