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

• stupidness
• thickness
• dumbness
• obtuseness
• dulness
• 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

Meanwhile, doubling down on stupidity, the Democrats attacked Trump for eliminating—or at least setting back—Iran’s capacity to complete construction and delivery of nuclear bombs. —Peter Lucas, Boston Herald, 4 July 2025

That’s either extreme confidence or extraordinary stupidity, or some combination. —Georg Szalai, HollywoodReporter, 3 June 2025

Critics often assume ego, stubbornness, or simply stupidity. —Robert Pearl, Twin Cities, 14 June 2025

The following program will contain graphic stupidity, as four friends compete to embarrass one another – only this time in Lithuania. —Jesse Whittock, Deadline, 9 June 2025

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