not the sharpest tool in the shed
Lacking mental acuity
Not the sharpest tool in the shed is a humorous way of calling someone unintelligent or slow-witted.
The phrase uses understatement—comparing someone to a dull tool rather than directly calling them stupid—which gives it a gentler, often affectionate tone.
Bless his heart, he's not the sharpest tool in the shed.
Variations include not the brightest bulb and not the sharpest knife in the drawer, all following the same pattern of implied comparison.
- dimwittedLacking mental acuity
- simple-mindedLacking mental acuity
- obtuseLacking mental sharpness
- slow-wittedLacking mental quickness
- thick-skulledStubbornly slow to comprehend
brainless · dull · unintelligent · half-witted · simple · dunce · ditzy · dumb as a box of rocks · one brick shy of a load · blockhead · dense · clueless · lights are on but nobody's home · birdbrain · dim bulb · airhead · dull as dishwater · thick as a brick
not the sharpest tool in the shedbrilliant
Intensely bright or gifted
genius · sharp as a tack · bright · whip-smart · razor-sharp
not the sharpest tool in the shedsharp cookie
Perceptive, intelligent person
nobody's fool · shrewd · savvy · astute · perceptive
sharpen, sharpened, sharpening, sharpener, sharpness, sharper, sharpest, sharply, tooled