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

Aaron Scout Tipsword, 25, is facing charges of DUI causing serious bodily injury, fleeing and eluding, resisting arrest, dangerous/excessive speeding, criminal mischief with property damage, possession of marijuana, and possession of drug paraphernalia, the Monroe County Sheriff’s Office said. —Devoun Cetoute, Miami Herald, 10 June 2026

The show follows Charles, Oliver and Mabel, three eccentric neighbors, who find purpose and chaos in solving murders that hit close to home through their true-crime podcast, turning their New York apartment building into a playground of mystery and mischief. —Andreas Wiseman, Deadline, 10 June 2026

Newark police announced on June 5 the arrest of Zion Napier, a 28-year-old man from Seattle, for criminal mischief. —Anna Giaritelli, The Washington Examiner, 10 June 2026

Two young men — Anthony DiPippo, then 18, and Andy Krivak, then 17, local nuisances with a handful of juvie busts for possession and public mischief — were framed for murder. —Paul Solotaroff, Rolling Stone, 9 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