Strong's #801: asunetos (pronounced as-oon'-ay-tos)
from 1 (as a negative particle) and 4908; unintelligent; by implication, wicked:--foolish, without understanding.
Thayer's Greek Lexicon:
̓́
asunetos
1) unintelligent, without understanding, stupid
Part of Speech: adjective
Relation: from G1 (as a negative particle) and G4908
Citing in TDNT: 7:888, 1119
Usage:
This word is used 5 times:
Matthew 15:16: "ye also yet without understanding?"
Mark 7:18: "Are ye so without understanding also? Do ye not perceive, that"
Romans 1:21: "imaginations, and their foolish heart was darkened."
Romans 1:31: " Without understanding, covenant breakers, without natural affection, implacable, unmerciful:"
Romans 10:19: "by them that are no people, and by a foolish nation I will anger you."