mischievous

American  

[mis-chuh-vuhs] / ˈmɪs tʃə vəs /

adjective

1. maliciously or playfully annoying.

2. causing annoyance, harm, or trouble.

3. roguishly or slyly teasing, as a glance.

4. harmful or injurious.

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mischievous British  

/ ˈmɪstʃɪvəs /

adjective

1. inclined to acts of mischief

2. teasing; slightly malicious

   a mischievous grin

3. causing or intended to cause harm

   a mischievous plot

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Pronunciation

The word mischievous has three syllables, mis-chie-vous, with the stress on the first syllable: . There is a common tendency to shift the stress to the second syllable and say or write the word as if there were an extra letter i after the v, turning it into a four-syllable word: . These alterations of the pronunciation (and sometimes even the spelling) may occur in part because in many English words ie is pronounced like ee, as in chief, in part because many words end with , spelled either -ious (as in devious ) or -eous (as in aqueous ), and in part because of confusion over where the second i in the word belongs. The Oxford English Dictionary reports that for some time in the evolution of the word—from about the sixteenth to the eighteenth century— mischievious was actually a fairly standard alternative spelling. Today, however, both the four-syllable spelling and the four-syllable pronunciation are generally regarded as nonstandard.

Other Word Forms

• mischievously adverb
• mischievousness noun
• nonmischievous adjective
• nonmischievously adverb
• nonmischievousness noun
• unmischievous adjective
• unmischievously adverb

Etymology

Origin of mischievous

First recorded in 1300–50; Middle English mischevous, from Anglo-French meschevous; equivalent to mischief + -ous

Explanation

If you’re the one making prank phone calls at 3 am and you can’t resist short-sheeting your camp counselor’s bunk, you're mischievous. If your dog likes to decorate your house with streamers of toilet paper, he's mischievous, too. You can be mischievous in harmless, playful ways, or you might also use the word mischievous to describe behavior that's more than just a little naughty. If you post some embarrassing photos of an acquaintance, your more generous friends might describe your behavior as mischievous, although others might accuse you of being downright mean. Keep in mind that the word has only three syllables: MIS-chuh-vuhs.

Example Sentences

When McKellen does emerge, wearing a blue zip-up hoodie and black sweatpants, he has a mischievous look in his eye.

From Los Angeles Times • Apr. 8, 2026

It bursts with insights that mix journalistic acumen with gossip, backed by a score generously seasoned with mischievous violin string plucking.

From Salon • Mar. 14, 2026

News of Eric Dane’s death Thursday was met with an outpouring of grief by celebrities, who expressed their admiration for the TV star’s mischievous on-screen charisma and his advocacy efforts during his battle against ALS.

From Los Angeles Times • Feb. 20, 2026

"This coin captures everything we love about him, that unmistakable mischievous grin, his furry pal Gnasher by his side and that irresistible spirit of rebellion that has made him a favourite across generations," she said.

From BBC • Feb. 19, 2026

The mischievous, open-ended note in his voice made me nervous.

From "The Secret History" by Donna Tartt

Related Words

• impish
• malicious
• naughty
• playful
• rude
• sly