nasty

/ˈnaː.sti/

//ˈnaː.sti// adj

"nasty" is a 5-letter English headword indexed on PlainSpell.

The verdict

“nasty” has 8 generated spelling variants in the English index at frequency #4,966. The variants make it a useful spelling check.

#4,966
frequency rank, English
1,534
“N” headwords
8
tracked misspellings
20
confusable pairs

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - Dirty, filthy.

Corpus desk

Index EN-nasty · nasty · English

nasty · rank #4,966 · 8 variants · 20 confusables

  • FREQ-COMMON #4,966
  • LEN-MID 5 letters
  • VOW-2 2 vowels
  • CONFUS-HIGH 20 pairs
  • VAR-MID 8 variants
  • BOOK-MID 1,534
  • PHOTO-FINISH motivation

Nearest frequency peer: motivation (-1 rank slots)

Read with this headword: Spelling guide for this pattern

Desk codes from Wiktionary headword shape, FrequencyWords rank tier, confusable-pair count, generated misspelling depth, letter-cohort book size, and photo-finish peer. Not a difficulty grade.

Frequency neighbourhood for “nasty”

Lower corpus rank = more everyday usage (inverted bar length for readability)

corpus weight

What this shows Bars show where “nasty” sits against the nearest ranked English headwords in the FrequencyWords band, not a reprint of letter-browse containment.

Source FrequencyWords open word-frequency list As of September 3, 2026

Visual similarity to commonly confused words

How many letter changes separate each confused pair (Levenshtein distance, normalized).

nasty vs Nat
40% similar
nasty vs nay
60% similar
nasty vs navy
60% similar

Source: PlainSpell confusable corpus (Wiktionary, CC BY-SA).

Key facts for nasty
PropertyValue
Headwordnasty
LanguageEnglish
Part of speechAdjective
IPA/ˈnaː.sti/
Letters5
Frequency rank#4,966
Misspellings tracked8
Confusable pairs20
SourceWiktionary (kaikki.org)

Where “nasty” sits in English frequency

Every-word frequency runs from the handful of words we use constantly (left) to the long tail used once in a blue moon (right). nasty lands here:

#1#100#1K#10K#100K
← used constantlyrarely used →

Scale is logarithmic (each tick is 10× rarer). Source: FrequencyWords open word-frequency list.

A misspelling magnet

The generator records 8 spelling variants around nasty (IPA /ˈnaː.sti/), anadjective. Corpus frequency is #4,966 among 1,534 “N” headwords. Wiktionary lists 8 senses, so context still picks the gloss.

Our generated misspelling index lists 8 likely wrong-spelling variants for nasty, with forms such as "ansty", "nassty", and "nastty". Every one of these variants traces to a single-character edit -- an added or dropped letter, a swapped consonant, or a vowel swap -- the kind of slip a spell-checker is built to catch. It also participates in 20 confusable-pair relationships, "Nat", "nay", "navy", and more, since the words sound or look close enough that writers reach for the wrong one mid-sentence.

Etymologically, the entry records: From Middle English nasty, nasti, naxty, naxte (“unclean, filthy”), whence also Early Modern English nasky (“nasty”), of obscure origin. Probably from earlier Middle English *naskty, *naskedy, from Middle English *nasked (“dirty, messy”) + -y, ultimately of… The correct English form is nasty, spelled N-A-S-T-Y.

Definition

  1. 1
    Dirty, filthy.
  2. 2
    Contemptible, unpleasant (of a person).
  3. 3
    Objectionable, unpleasant (of a thing); repellent, offensive.
  4. 4
    Indecent or offensive; obscene, lewd.
  5. 5
    Spiteful, unkind.
  6. 6
    Awkward, difficult to navigate; dangerous.
  7. 7
    Grave or dangerous (of an accident, illness etc.).
  8. 8
    Formidable, terrific; wicked.

Recorded use

Wiktionary examples

These source excerpts show how nasty appears in context. They illustrate usage; the definition above remains the entry’s reference meaning.

  1. In such condition, there is no place for Industry; because the fruit thereof is uncertain: and consequently no Culture of the Earth; no Navigation, nor use of the commodities that may be imported by Sea; no commodious Building; no Instruments of moving, and removing such things as require much force; no Knowledge of the face of the Earth; no account of Ti…
  2. I really don't have any friends at school Mama Mia. They talk about me all the time. They say my hair's nappy and my clothes are nasty.

Etymology

From Middle English nasty, nasti, naxty, naxte (“unclean, filthy”), whence also Early Modern English nasky (“nasty”), of obscure origin. Probably from earlier Middle English *naskty, *naskedy, from Middle English *nasked (“dirty, messy”) + -y, ultimately of North Germanic origin (comparable to Danish nasket (“dirty, foul, unpleasant”), Swedish naskot (“dirty, filthy”), Swedish naskig, naskug (“nasty, dirty, messy”)), themselves all probably related to Proto-Germanic *hnaskuz (“tender, soft”). Likely doublet of nesh and nosh. Cognate with Scots nastie, nestie (“dirty, filthy”). Alternative theories have also been proposed, which include: * From Low German nask (“nasty”) + -y. * Middle Dutch nestich, nistich ("nasty, dirty, unpleasant" > Modern Dutch nestig (“dirty, filthy, unclean; lazy, cranky”)), perhaps ultimately connected to the Scandinavian word above, or related to *nest (“nest”). * From Old French nastre (“lowly, strange”), shortened form of villenastre (“infamous, bad”), from vilein (“villain”) + -astre (pejorative suffix), from Latin -aster. * Other suggestions include Old High German naz (“wet”), hardening of English nesh(y) (“soft”), or alteration of English naughty. * Modern use of the word is sometimes attributed to the popular and often derogatory 19th century American political cartoons of Thomas Nast, but the word predates him.

Synonyms

This word in other languages

Common misspellings

Also misspelled as:

  • ansty
  • nassty
  • nastty
  • nastyy
  • nasyt
  • natsy
  • nnasty
  • nsaty

Misspelling Pattern Breakdown

How far each generated variant is from the correct spelling of nasty - measured in single-character edits (insert, delete, or substitute a letter). Larger bars are easier to catch; one-edit slips are the sneakiest.

ansty2nassty1nastty1nastyy1nasyt2natsy2nnasty1nsaty2
Edit distance from "nasty"

Definitions, pronunciation, and etymology for this entry are drawn from Wiktionary via the kaikki.org structured extract (CC BY-SA); frequency ordering uses the FrequencyWords open word-frequency list (2018 English corpus, MIT). See the methodology for how each field is sourced and updated.

PlainSpell is rendered directly from structured Wiktionary extracts and open word-frequency lists, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of September 3, 2026. Primary sources: Wiktionary (via kaikki.org) and FrequencyWords.

Frequently Asked Questions

How do you spell "nasty"?
"nasty" is spelled N-A-S-T-Y. The IPA pronunciation is /ˈnaː.sti/.
What does "nasty" mean?
As an adjective, "nasty" means: Dirty, filthy.
What words are commonly confused with "nasty"?
"nasty" is commonly confused with "Nat", "nay", "navy". These words look or sound similar but have different meanings. PlainSpell provides detailed comparisons for each pair.
How do you pronounce "nasty"?
The IPA (International Phonetic Alphabet) transcription for "nasty" is /ˈnaː.sti/. Click the speaker icon on the pronunciation badge above to hear it spoken aloud where audio is available.
What is the origin of the word "nasty"?
From Middle English nasty, nasti, naxty, naxte (“unclean, filthy”), whence also Early Modern English nasky (“nasty”), of obscure origin. Probably from earlier Middle English *naskty, *naskedy, from Middle English *nasked (“dirty, messy”) + -y, ult... See the full etymology section above for more details.
Is PlainSpell free to use?
Yes, PlainSpell is a completely free word reference. You can look up definitions, pronunciations, confusable pairs, homophones, and spelling corrections across 5 languages without any sign-up or subscription.

Similar English words by spelling shape

Same letter count and similar misspelling depth for "nasty", not the corpus desk frequency band.

Same letter count

Frequency-ranked English headwords with 5 letters (nearest by frequency rank).

Similar misspelling depth

Headwords with a similar count of attested misspellings (8 here; floor ≥5).

What to do next

You've looked up "nasty". Here's where to go from here.

  • "nasty" maps to 20 confusable pairs in this vintage; the highest-scored is "Nat". View pair
  • 8 edit-distance misspelling variants are generated for spell-check research on this headword. See variants
  • Usage frequency rank #4,966 among English headwords in this corpus. Corpus statistics
  • Browse more English words in the "N" letter cohort. N–Z browse
  • PlainSpell rotates a curated Word of the Day from the English corpus, a passive way to discover vocabulary. Word of the Day

PlainSpell is a reference corpus, not spelling advice. Verify unusual forms in context.

Data Source

Wiktionary (via kaikki.org), licensed under CC BY-SA & GFDL. Word ordering uses an open word-frequency list; misspelling variants are generated by edit-distance from the correct headword.

Source: Wiktionary (via kaikki.org) Structured Wiktionary extract

Source: FrequencyWords open word-frequency list