stupidity

noun

stu·​pid·​i·​ty stu̇-ˈpi-də-tē 

styu̇-

plural stupidities

1

: the quality or state of being stupid

2

: a stupid idea or act

Synonyms of stupidity

• stupidness
• thickness
• dumbness
• obtuseness
• foolishness
• slowness
• dullness
• mindlessness
• insanity
• boneheadedness
• density
• oafishness

Examples of stupidity in a Sentence

I was shocked by the stupidity of their decision.

the stupidity of the dialogue between the two romantic leads had movie audiences giggling uncontrollably

Recent Examples on the Web

Here are the three reasons a good employee sits on a great AI discovery, and none of them is stupidity. — Mark Murphy, Forbes.com, 8 July 2026

The stupidity of losing his car was one thing; the cruelty of forcing her to make that choice was quite another. — Emily Ruskovich, The Atlantic, 7 July 2026

Is there a level of insanity, vitriol and stupidity that is infiltrating almost every aspect of our modern society, regardless of your political or religious views? — Joe Kinsey Outkick, FOXNews.com, 4 July 2026

Warm, fuzzy feelings for noble stupidity are an American thing, especially in politics. — The New Yorker, New Yorker, 4 July 2026

Word History

First Known Use

circa 1541, in the meaning defined at sense 1

Rhymes for stupidity

• acidity
• aridity
• avidity
• cupidity
• fluidity
• humidity
• liquidity
• lucidity
• morbidity
• placidity
• rancidity
• rapidity

Kids Definition

stupidity

noun

stu·​pid·​i·​ty st(y)u̇-ˈpid-ət-ē 

plural stupidities

1

: the quality or state of being stupid

2

: something (as an idea or act) that is stupid