Strong's #453: anoetos (pronounced an-o'-ay-tos)

from 1 (as a negative particle) and a derivative of 3539; unintelligent; by implication, sensual:--fool(-ish), unwise.

Thayer's Greek Lexicon:

̓́

anoētos

1) not understood, unintelligible

2) not understanding, unwise, foolish

Part of Speech: adjective

Relation: from G1 (as a negative particle) and a derivative of G3539

Citing in TDNT: 4:961, 636

Usage:

This word is used 6 times:

 

Luke 24:25: "unto them, O fools, and slow of heart to believe"
Romans 1:14: "both to the wise, and to the unwise."
Galatians 3:1: "O foolish Galatians, who hath bewitched you, that ye should not obey"
Galatians 3:3: "Are ye so foolish? having begun in the Spirit, are ye now made perfect by the flesh?"
1 Timothy 6:9: "a snare, and into many foolish and hurtful lusts, which"
Titus 3:3: "ourselves also were sometimes foolish, disobedient, deceived, serving divers"