50 Similes for Stupid with Meanings & Sentences
Similes for Stupid
1. As dumb as a rock
Meaning: Extremely unintelligent.
In a Sentence: He kept failing the simplest questions — he’s as dumb as a rock.
Other Ways to Say: As thick as a brick; As brainless as a block.
2. Slow as molasses
Meaning: Moving or thinking very slowly.
In a Sentence: The old computer is as slow as molasses; it takes forever to load a webpage.
Other Ways to Say: Slower than a snail; As sluggish as a sloth.
3. Like a box of hammers
Meaning: Lacking intelligence or sense.
In a Sentence: He’s kind, but he’s like a box of hammers when it comes to logic.
Other Ways to Say: Dumb as a doorknob; Dense as a door.
4. Brain like a sieve
Meaning: Forgetting everything quickly.
In a Sentence: She’s got a brain like a sieve — she loses her keys daily.
Other Ways to Say: Memory like Swiss cheese; Mind full of holes.
5. As sharp as a bowling ball
Meaning: Not clever or quick-witted.
In a Sentence: He’s as sharp as a bowling ball in class discussions.
Other Ways to Say: Dull as a butter knife; Not the sharpest tool in the shed.
6. Like a lightbulb with no power
Meaning: Without intelligence or insight.
In a Sentence: He stared at me like a lightbulb with no power.
Other Ways to Say: Lights on but nobody home; Mind turned off.
7. As clueless as a goat in a garage
Meaning: Completely unaware of surroundings.
In a Sentence: He looked as clueless as a goat in a garage during the quiz.
Other Ways to Say: Lost like a puppy; Confused like a chicken in the rain.
8. Like a broken compass
Meaning: Lacking direction or understanding.
In a Sentence: Her ideas were all over the place, like a broken compass.
Other Ways to Say: Directionless like wind; Wandering like fog.
9. As blank as a whiteboard
Meaning: Showing no understanding or thoughts.
In a Sentence: He stared at the question as blank as a whiteboard.
Other Ways to Say: Empty like a page; Clear as glass.
10. Like a squirrel with no nut
Meaning: Scatterbrained or aimless.
In a Sentence: He acted like a squirrel with no nut, running around lost.
Other Ways to Say: As scattered as leaves; Distracted like a bird.
11. As smart as a bag of rocks
Meaning: Very unintelligent.
In a Sentence: That idea was as smart as a bag of rocks.
Other Ways to Say: Dense as concrete; Thick as mud.
12. Like a GPS with no signal
Meaning: Mentally lost or unfocused.
In a Sentence: Her brain during exams is like a GPS with no signal.
Other Ways to Say: Lost in space; Offline mentally.
13. As bright as a burnt-out bulb
Meaning: Dull or slow in thinking.
In a Sentence: That answer was as bright as a burnt-out bulb.
Other Ways to Say: Dim as twilight; Low-wattage mind.
14. Like a fish out of water
Meaning: Out of place or confused.
In a Sentence: He was like a fish out of water during the presentation.
Other Ways to Say: Awkward as a penguin on land; Lost like a sheep.
15. As useful as a chocolate teapot
Meaning: Completely useless or ineffective.
In a Sentence: His ideas were as useful as a chocolate teapot.
Other Ways to Say: Worthless like a paper anchor; Useless as a screen door on a submarine.
16. Like trying to teach a brick
Meaning: Teaching someone who doesn’t understand at all.
In a Sentence: Teaching him physics is like trying to teach a brick.
Other Ways to Say: Like talking to a wall; As dense as stone.
17. As alert as a sleeping sloth
Meaning: Extremely slow and unresponsive.
In a Sentence: He was as alert as a sleeping sloth during the meeting.
Other Ways to Say: Numb like a frozen turtle; Tired like a zombie.
18. Like a bird with no wings
Meaning: Unable to do anything effectively.
In a Sentence: Without any skills, he was like a bird with no wings.
Other Ways to Say: Grounded like a kite in a drawer; Useless like a pen with no ink.
19. As aware as a brick wall
Meaning: Completely unaware of what’s going on.
In a Sentence: He was as aware as a brick wall during the lesson.
Other Ways to Say: Blind as a bat; Oblivious like a statue.
20. Like a calculator with dead batteries
Meaning: Unable to process anything.
In a Sentence: My brain felt like a calculator with dead batteries today.
Other Ways to Say: Shut down mentally; Like a frozen screen.
21. As fast as dial-up internet
Meaning: Extremely slow to respond or think.
In a Sentence: His reaction time is as fast as dial-up internet.
Other Ways to Say: Slow as a snail in glue; Delayed like buffering video.
22. Like spaghetti without sauce
Meaning: Lacking content or value.
In a Sentence: His essay was like spaghetti without sauce — plain and pointless.
Other Ways to Say: Empty like a drum; Dry like toast.
23. As reactive as a brick
Meaning: Showing no reaction.
In a Sentence: I made a joke and he was as reactive as a brick.
Other Ways to Say: Expressionless like stone; Still like a statue.
24. Like a door without a knob
Meaning: Incomplete or not functioning.
In a Sentence: His answer was like a door without a knob — it went nowhere.
Other Ways to Say: Useless like a car with no wheels; Pointless like a pencil with no lead.
25. As lost as a tourist with no map
Meaning: Extremely confused or disoriented.
In a Sentence: During math class, I was as lost as a tourist with no map.
Other Ways to Say: Confused as a bat in daylight; Clueless as a newborn.
26. Like a balloon with no air
Meaning: Lacking energy or purpose.
In a Sentence: His explanation deflated like a balloon with no air.
Other Ways to Say: Empty as a vacuum; Flat like soda left out.
27. As pointless as a circle in a square hole
Meaning: Not fitting or making sense.
In a Sentence: His suggestion was as pointless as a circle in a square hole.
Other Ways to Say: Doesn’t add up; Makes no sense.
28. Like a shadow at night
Meaning: Invisible or irrelevant.
In a Sentence: His presence in the discussion was like a shadow at night.
Other Ways to Say: Silent as a ghost; Absent like air.
29. As lively as a wet towel
Meaning: Boring and dull.
In a Sentence: His speech was as lively as a wet towel.
Other Ways to Say: Deadpan; Drier than dust.
30. Like a clock with no hands
Meaning: Serving no purpose.
In a Sentence: That theory is like a clock with no hands — it tells nothing.
Other Ways to Say: Meaningless like blank paper; Confusing as a riddle.
31. As clear as mud
Meaning: Very confusing or unclear.
In a Sentence: His instructions were as clear as mud.
Other Ways to Say: Complicated like a puzzle; Confusing as a maze.
32. Like a book with no words
Meaning: Empty and lacking content.
In a Sentence: His ideas were like a book with no words.
Other Ways to Say: Hollow like a shell; Shallow as a puddle.
33. As silent as a mime in a box
Meaning: Refusing to speak or respond.
In a Sentence: He was as silent as a mime in a box when questioned.
Other Ways to Say: Speechless; Muted like a TV on mute.
34. Like a TV with no signal
Meaning: Not connected or not functioning.
In a Sentence: His brain was like a TV with no signal — just static.
Other Ways to Say: Blank like snow screen; Offline mentally.
35. As dense as fog
Meaning: Hard to understand or lacking clarity.
In a Sentence: His explanation was as dense as fog.
Other Ways to Say: Thick like mist; Murky like dirty water.
36. Like a puppet with no strings
Meaning: Powerless or purposeless.
In a Sentence: He moved like a puppet with no strings — aimless and lost.
Other Ways to Say: Lifeless; Weak and wandering.
37. As numb as a frozen hand
Meaning: Unresponsive or slow.
In a Sentence: His reaction was as numb as a frozen hand.
Other Ways to Say: Dull like cold stone; Sluggish like syrup.
38. Like a clown in a courtroom
Meaning: Completely inappropriate or misplaced.
In a Sentence: His idea sounded like a clown in a courtroom.
Other Ways to Say: Doesn’t belong; Totally off.
39. As creative as a blank page
Meaning: Not imaginative at all.
In a Sentence: His writing was as creative as a blank page.
Other Ways to Say: Empty of ideas; Plain like paper.
40. Like an engine with no fuel
Meaning: Incapable of action or thought.
In a Sentence: My brain felt like an engine with no fuel after the test.
Other Ways to Say: Exhausted; Mentally stalled.
41. As curious as a rock
Meaning: Not curious at all.
In a Sentence: He was as curious as a rock during the museum tour.
Other Ways to Say: Indifferent; Blank stare.
42. Like a kite with no string
Meaning: Out of control or directionless.
In a Sentence: His thoughts were like a kite with no string.
Other Ways to Say: Floating with no aim; Drifting.
43. As clueless as a blindfolded man
Meaning: Completely unaware.
In a Sentence: He was as clueless as a blindfolded man in a maze.
Other Ways to Say: Lost in the dark; No idea what’s happening.
44. Like a frozen screen
Meaning: Mentally stuck or non-responsive.
In a Sentence: During the oral test, he was like a frozen screen.
Other Ways to Say: Frozen like ice; Brain lag.
45. As random as static noise
Meaning: Lacking any pattern or sense.
In a Sentence: His ideas were as random as static noise.
Other Ways to Say: Disorganized; All over the place.
46. Like a car with square wheels
Meaning: Inefficient or ineffective.
In a Sentence: His plan moved like a car with square wheels.
Other Ways to Say: Bumpy and broken; Doesn’t work right.
47. As witty as cardboard
Meaning: Lacking humor or sharpness.
In a Sentence: His joke was as witty as cardboard.
Other Ways to Say: Dry humor; Flat joke.
48. Like a light with no bulb
Meaning: Without insight or brilliance.
In a Sentence: Her response was like a light with no bulb — it made no sense.
Other Ways to Say: Dim; Void of clarity.
49. As empty as a hollow tree
Meaning: Lacking depth or substance.
In a Sentence: His story was as empty as a hollow tree.
Other Ways to Say: Shallow; Superficial.
50. Like a ship with no captain
Meaning: Without guidance or intelligence.
In a Sentence: The group felt like a ship with no captain under his leadership.
Other Ways to Say: Directionless; Unled.
