sa.khal denotes a person characterized by deficient understanding, shown in unwise speech, conduct, or failure to perceive.

The attested uses identify people whose lack of understanding is displayed through excessive speech, deficient judgment, evil conduct, or failure to see and hear; the term can stand in contrast to a wise person.

1. A person lacking understanding or sound judgment · dominant

   In Ecclesiastes 10:14 the singular noun identifies the person who multiplies words despite not knowing what will happen, while Ecclesiastes 2:19 contrasts such a person with a wise man. In Ecclesiastes 10:3 and Ecclesiastes 7:17 the APB renders clauses about a person's deficient heart and warned-against conduct, and Jeremiah 4:22 and Jeremiah 5:21 apply the term to people who lack understanding, do not know good, or have eyes and ears without perceiving.

   Ecclesiastes 10:14Ecclesiastes 10:3Ecclesiastes 2:19Ecclesiastes 7:17Jeremiah 4:22Jeremiah 5:21

In the Anselm Project Bible: The APB presents the term with “fool” in the Ecclesiastes verses and “foolish” in the Jeremiah verses; it also places “senseless” and “without heart” in the surrounding descriptions. Those accompanying expressions describe the clauses rather than establish separate renderings of the lemma.