Strong’s Greek
G418 — anendektos
The entry below is Strong’s own definition (1890, public domain), and every verse where the word occurs.
ἀνένδεκτος
anendektos — pronounced an-en'-dek-tos
from 1 (as a negative particle) and a derivative of the same as 1735; unadmitted, i.e. (by implication) not supposable:--impossible. see GREEK for 1 see GREEK for 1735
1 occurrence in the KJV.
Luke 17:1
Then said he unto the disciples, It is impossible but that offences will come: but woe unto him, through whom they come!