KJV Dictionary Definition: foolish
1. Void of understanding or sound judgment; weak in intellect; applied to general character.
2. Unwise; imprudent; acting without judgment or discretion in particular things.
3. Proceeding from folly, or marked with folly; silly; vain; trifling.
But foolish questions avoid. 2Tim. 2.
4. Ridiculous; despicable.
A foolish figure he must make.
5. In scripture, wicked; sinful; acting without regard to the divine law and glory, or to one's own eternal happiness.
O foolish Galatians - Ga. 3.
6. Proceeding from depravity; sinful; as foolish lusts. 1Tim. 6.
1. Folly; want of understanding.
2. Foolish practice; want of wisdom or good judgment.
3. In a scriptural sense, absurdity; folly.
The preaching of the cross is to them that perish foolishness. 1Cor. 1.