stupid

/ˈstuːpɪd/
lacking intelligence

Don't be stupid—check the map before driving.

A warning against careless or carefree behavior.


informal

lacking intelligence or good judgment

It was stupid of me to forget my keys.

An admission of a careless mistake.

The movie was so stupid it was funny.

Describes something intentionally ridiculous or absurd.

Often used humorously or affectionately in casual speech.

informal

causing dismay or shock

The price was stupidly high.

Emphasizes extreme or unreasonable cost.

Less common than the primary meaning.

Collocations

stupid mistakea careless errorstupid ideaa poorly thought-out suggestionstupidly expensiveunreasonably costly

Related Phrases

play the foolphrase
to behave in a silly or careless way
act your agephrase
to behave more maturely

Pro Tip

Avoiding offense

Use 'silly' or 'unwise' instead of 'stupid' when criticizing someone's actions to sound less harsh.

Gold Rule

Context matters

In playful contexts (e.g., teasing friends), 'stupid' can be lighthearted. In serious or professional settings, opt for neutral alternatives.

Word Origin

From Latin *stupidus* ('stunned, amazed, dull'), from *stupere* ('to be stunned'). Entered English in the 16th century with the sense of 'mentally slow' or 'lacking sensitivity'.

Usage Notes

Considered informal and potentially offensive. Use 'silly' or 'unwise' in formal contexts. Tone varies by context—can be playful or derogatory.

Word Breakdown

stupid
lacking intelligence
root
English Dictionary