ἀνόητος

Then he said unto them, O fools, and slow of heart to believe all that the prophets have spoken:

I am debtor both to the Greeks, and to the Barbarians; both to the wise, and to the unwise.

O foolish Galatians, who hath bewitched you, that ye should not obey the truth, before whose eyes Jesus Christ hath been evidently set forth, crucified among you?

Are ye so foolish? having begun in the Spirit, are ye now made perfect by the flesh?

But they that will be rich fall into temptation and a snare, and into many foolish and hurtful lusts, which drown men in destruction and perdition.

For we ourselves also were sometimes foolish, disobedient, deceived, serving divers lusts and pleasures, living in malice and envy, hateful, and hating one another.