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sharp as a bowling ball

sharp as a bowling ball

9.3
A person who is not smart and is slow to understand things
  • idiom
  • Offensive
translation icon : tonto
  • He is about as sharp as a bowling ball!

Examples

  • You don't have to be sharp as a bowling ball to see why that plan failed.

  • Everyone else quickly understood the instructions, but Tom was sharp as a bowling ball.

  • Linda joked that her brother is sharp as a bowling ball when it comes to remembering birthdays.

  • I can't believe she thought that; she's sharp as a bowling ball.

  • Everyone else quickly understood the instructions, but Tom was sharp as a bowling ball.

  • Linda joked that her brother is sharp as a bowling ball when it comes to remembering birthdays.

  • You don't have to be sharp as a bowling ball to see why that plan failed.

Synonyms

simple
vssharp as a bowling ball
  • Offensive
138 8.1

Not smart or quick to understand

is more humorous and emphasizes severe lack of perception
obtuse
vssharp as a bowling ball
  • Offensive
14 7.4

Slow to understand what other people mean

is more playful insult highlighting very low perception
witless
vssharp as a bowling ball
  • Offensive
9 6.8

Not showing good sense or judgment

is more sarcastic and uses humor to show poor perception
dim-witted
vssharp as a bowling ball
  • Offensive
6 5.6

Not quick to understand or learn

is more sarcastic and focuses on lack of perceptive ability
slow-witted
vssharp as a bowling ball
  • Offensive
3 6.7

Not quick to understand or think

is more mocking and targets lack of alertness rather than slowness
half-witted
vssharp as a bowling ball
  • Offensive
2 7.5

Showing very little sense or intelligence

is more playful sarcasm rather than blunt insult focusing on perception
not the sharpest crayon in the box
vssharp as a bowling ball
  • Offensive
1 9.9

A person who is not very quick to understand things

is more sarcastic and emphasizes deep lack of perception
beef-witted
vssharp as a bowling ball
  • Offensive
1 9.9

Slow to understand things and often acting foolishly

is more sarcastic and ridicules general lack of perception
sharpest tool in the box
vssharp as a bowling ball
  • Offensive
8.8

A person who is not very quick to understand

is more sarcastic and stresses very low intelligence and lack of perception
not the sharpest knife in the drawer
vssharp as a bowling ball
  • Offensive
9.1

Not very quick to understand things

is harsher sarcasm stressing seriously poor perception
as sharp as a butter knife
vssharp as a bowling ball
  • Offensive
7.5

Fails to make a strong point because it is dull and weak

is more about lacking mental alertness rather than mere ineffectiveness
soft-witted
vssharp as a bowling ball
  • Offensive
8.8

A person who is slow to understand and easily fooled

is more joking and stresses simple lack of perception
nice-but-dim
vssharp as a bowling ball
  • Offensive
9.2

Pleasant and friendly but not very smart

is more sarcastic and stresses bluntly poor perceptive ability

How Smart

smart
1.9
average
1.0
dimwitted
  • Offensive
6 5.3
sharp as a bowling ball
  • Offensive
9.3
brainless
  • Offensive
24 3.5

Surface Forms

Morphology

sharp + as + a + bowling + ball

The simile pattern 'as X as Y' is compositional and the meaning follows directly from comparing 'sharp' (clever/acute) with a bowling ball (a blunt, round object), so learners can infer the sarcastic sense of lacking intelligence. This figurative comparison is a transparent, predictable extension of the constituents and is likely accessible to a B1 learner who knows the individual words and the comparative construction.

Etymology

Sharp as a bowling ball plays on a simple image: sharp usually means 'clever', but a smooth round bowling ball has no edges at all. So saying someone is sharp as a bowling ball jokingly means they are 'not smart' or slow to understand.