Strong's #418: 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.
Thayer's Greek Lexicon:
̓́
anendektos
1) that cannot be admitted, inadmissible, unallowable, improper
Part of Speech: adjective
Relation: from G1 (as a negative particle) and a derivative of the same as G1735
Usage:
This word is used 1 times:
Luke 17:1: "the disciples, It is impossible but that offenses will come: but"