nasty

adjective

nas·​ty ˈna-stē 

nastier; nastiest

1

a

: disgustingly filthy

nasty living conditions

b

: physically repugnant

a nasty taste

2

: indecent, obscene

nasty language

3

: mean, tawdry

living a cheap and nasty life

—G. B. Shaw

4

a

: extremely hazardous (see hazardous sense 1) or harmful

a nasty undertow

b

: causing severe pain or suffering

a nasty wound

a nasty fall

c

: sharply unpleasant : disagreeable

nasty weather

5

a

: difficult to understand or deal with

a nasty problem

a nasty curveball

b

: psychologically unsettling : trying

a nasty fear that she was lost

6

: lacking in courtesy or sportsmanship

a nasty trick

nastily

ˈna-stə-lē 

adverb

nastiness

ˈna-stē-nəs 

noun

nasty noun

Synonyms

• cheap
• contemptible
• cruddy
• deplorable
• despicable
• dirty
• grubby
• lame
• lousy
• mean
• paltry
• pitiable
• pitiful
• ratty
• scabby
• scummy
• scurvy
• sneaking
• sorry
• wretched

Choose the Right Synonym for nasty

dirty, filthy, foul, nasty, squalid mean conspicuously unclean or impure.

dirty emphasizes the presence of dirt more than an emotional reaction to it.

a dirty littered street

filthy carries a strong suggestion of offensiveness and typically of gradually accumulated dirt that begrimes and besmears.

a stained greasy floor, utterly filthy

foul implies extreme offensiveness and an accumulation of what is rotten or stinking.

a foul-smelling open sewer

nasty applies to what is actually foul or is repugnant to one expecting freshness, cleanliness, or sweetness.

it's a nasty job to clean up after a sick cat

In practice, nasty is often weakened to the point of being no more than a synonym of unpleasant or disagreeable.

had a nasty fall

his answer gave her a nasty shock

squalid adds to the idea of dirtiness and filth that of slovenly neglect.

squalid slums

All these terms are also applicable to moral uncleanness or baseness or obscenity.

dirty then stresses meanness or despicableness

don't ask me to do your dirty work

, while filthy and foul describe disgusting obscenity or loathsome behavior

filthy street language

a foul story of lust and greed

, and nasty implies a peculiarly offensive unpleasantness.

a stand-up comedian known for nasty humor

Distinctively, squalid implies sordidness as well as baseness and dirtiness.

engaged in a series of squalid affairs

Examples of nasty in a Sentence

She has a nasty habit of biting her fingernails.

The medicine left a nasty taste in my mouth.

That nasty old man yelled at me just for stepping on his lawn!

He sent a nasty letter to the company.

She's got quite a nasty temper.

He said lots of downright nasty things about her.

She called him a few nasty names and left.

Recent Examples on the Web

Wireless Humidifier Another Healthy Home Awards winner, this portable humidifier can sit on top of their desk or nightstand to hydrate dry skin (or help a cold feel a little less nasty). —Jessica Kasparian, SELF, 10 Dec. 2024

Threat researchers have confirmed that a nasty new scam that targets macOS users is being actively exploited by hackers looking to get victims to download malware that will attempt to steal passwords from the keychain as well as through the Chrome, Bravo and Vivaldi web browsers manage others. —Davey Winder, Forbes, 9 Dec. 2024

Treinen rewarded his manager’s faith in him by retiring the dangerous Giancarlo Stanton on a first-pitch fly out to right field and striking out Anthony Rizzo with a nasty 86-mph sweeper to end the inning. —Mike Digiovanna, Los Angeles Times, 9 Dec. 2024

By the end of this year’s finale, the Lioness team has wrought an even nastier trail of carnage on two different continents. —Andy Andersen, Vulture, 8 Dec. 2024

Word History

Etymology

Middle English

First Known Use

14th century, in the meaning defined at sense 1a

Phrases Containing nasty

• a nasty piece of work
• video nasty

Kids Definition

nasty

adjective

nas·​ty ˈnas-tē 

nastier; nastiest

1

: very dirty or foul : filthy

2

: morally disgusting or degrading

3

: disagreeable sense 1, unpleasant

nasty weather

4

: spiteful, ill-natured

a nasty temper

a nasty trick

5

: harmful, dangerous

a nasty fall on the ice

nastily

-tə-lē 

adverb

nastiness

-tē-nəs 

noun