not the sharpest knife in the drawer | not the sharpest tool in the box成語所屬單字sharpnot the sharpest knife in the drawer | not the sharpest tool in the boxnot the sharpest knife in the drawer | not the sharpest tool in the box — 慣用語慣用語1. This phrase means someone is not very smart or clever.1.慣用語釋義不太聰明This phrase means someone is not very smart or clever.例句Maya is not the sharpest knife in the drawer, but she works hard.Do you think Brian is not the sharpest tool in the box?