mischief

noun

mis·​chief ˈmis-chəf 

ˈmish-

1

: a specific injury or damage attributed to a particular agent

… the polished floor … often causes mischiefs—bruises, sprains, dislocations …

—Herbert Spencer

2

: a cause or source of harm, evil, or irritation

especially : a person who causes mischief

He's a real mischief to his family.

3

a

: action that annoys or irritates

Halloween mischiefs

b

: the quality or state of being mischievous : mischievousness

had mischief in his eyes

Synonyms of mischief

• devilment
• mischievousness
• playfulness
• wickedness
• rascality
• devilry
• roguishness
• devilishness
• roguery
• naughtiness
• impishness
• knavery

Examples of mischief in a Sentence

It's hard to keep him out of mischief.

the children claimed that setting off a firecracker was harmless mischief, but they got a lecture anyway

Recent Examples on the Web

The chapters moved from crime rates to cheating teachers to drug dealers living with their mothers, linking unlikely variables with a kind of intellectual mischief that felt almost illicit. — Alexander Puutio, Forbes.com, 30 June 2026

This fast-paced, 60-minute performance puts a fresh spin on the classic one-ring circus, blending daring feats with playful mischief and Circus Bella’s signature sparkle with the Circus Bella All-Star Band’s live music. — Hema Sivanandam, Mercury News, 29 June 2026

Additional criminal mischief charges have been filed against Logrande after recent incidents involving other broken windshields at a nearby condominium development. — Marcella Baietto, CBS News, 28 June 2026

Saul Vargas of Saint Cloud, Florida was also charged with criminal mischief on June 15. — Thomas Tracy, New York Daily News, 26 June 2026

Word History

Etymology

Middle English meschief, from Anglo-French, misfortune, hardship, from Old French meschever to come out badly, mes- + chief head, end — more at chief

First Known Use

14th century, in the meaning defined at sense 1

Phrases Containing mischief

• malicious mischief

Kids Definition

mischief

noun

mis·​chief ˈmis-chəf 

ˈmish-

1

: injury sense 2, harm

2

: a person or animal who causes mischief

3

: mischievous conduct or quality

a child gets into mischief

had mischief in their eyes