סכל

Verb

 * 1) to do wrong, to behave foolishly
 * 2) to understand

Etymology
From the root.

Adjective

 * 1)  Stupid, lacking basic intelligence.
 * 2) * Jeremiah 5:21:
 * שִׁמְעוּ־נָא זֹאת עַם סָכָל וְאֵין לֵב עֵינַיִם לָהֶם וְלֹא יִרְאוּ אָזְנַיִם לָהֶם וְלֹא יִשְׁמָעוּ׃
 * shim'u-ná zot am sakhál v'éin lev eináyim lahém v'ló yir'ú oznáyim lahém v'ló yishmá'u:
 * Hear now this, O foolish people, and without understanding; which have eyes, and see not; which have ears, and hear not:

Noun

 * 1)  Folly, foolishness.
 * 2) * Ecclesiastes 10:6:
 * נִתַּן הַסֶּכֶל בַּמְּרוֹמִים רַבִּים וַעֲשִׁירִים בַּשֵּׁפֶל יֵשֵׁבוּ׃
 * nitán hasékhel bam'romím rabím va'ashirím bashéfel yeshévu.
 * Folly is set in great dignity, and the rich sit in low place.