King James Bible

FOOL'ISH, adjective

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. 2 Timothy 2:23.

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 - Galatians 3:1.

6. Proceeding from depravity; sinful; as foolish lusts. 1 Timothy 6:9.