Strong’s Greek
G1386 — dolios
The entry below is Strong’s own definition (1890, public domain), and every verse where the word occurs.
δόλιος
dolios — pronounced dol'-ee-os
from 1388; guileful:--deceitful. see GREEK for 1388
1 occurrence in the KJV.
2 Corinthians 11:13
For such are false apostles, deceitful workers, transforming themselves into the apostles of Christ.