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

While these are great for protecting your guts against nasty stuff like salmonella, the reality is, that none of these elements are great for your hair or your scalp. —Sophia Panych, Allure, 2 Apr. 2024

Industry leaders expect banana prices to start rising as climate change and a nasty fungus affect banana crops, according to CBS News. —Brandee Gruener, Southern Living, 29 Mar. 2024

Black likes Lawrence’s nasty stuff and ability to get out of trouble via strikeouts or groundball outs. —Patrick Saunders, The Denver Post, 25 Mar. 2024

Wall Street woke up to a nasty surprise this morning: Fueled by rising rents and gas prices, U.S. inflation rose slightly to 3.2% year over year last month, according to Bureau of Labor Statistics data. —Alena Botros, Fortune, 12 Mar. 2024

And yet, many companies seldom upgrade those tools beyond the cheap and nasty basic keyboards that ship with many desktop computers. —Mark Sparrow, Forbes, 27 Mar. 2024

This tastes like chemicals with a nasty bitter aftertaste. —Jolene Thym, The Mercury News, 19 Mar. 2024

This is intended to provide a place for innovation without nasty regulatory surprises in the future. —David Meyer, Fortune, 13 Mar. 2024

After a particularly nasty fight with her dad, Lily tries to find him on Facebook and connects instead with a middle-aged contractor who happens to have the same name. —Angie Han, The Hollywood Reporter, 9 Mar. 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