Strong G801 ἀσύνετος asunetos · senseless

Romans

1. Romans 1:21
   Because that, when they knew God, they glorified him not as God, neither were thankful; but became vain in their imaginations, and their foolish heart was darkened.
2. Romans 1:31
   Without understanding, covenantbreakers, without natural affection, implacable, unmerciful:
3. Romans 10:19
   But I say, Did not Israel know? First Moses saith, I will provoke you to jealousy by them that are no people, and by a foolish nation I will anger you.