muggy

/ˈmʌɡi/

//ˈmʌɡi// adj

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

The verdict

“muggy” is uncommon English (frequency #51,266 among 4,057 “M” headwords), classed as an adjective. The kind of spelling people second-guess.

#51,266
frequency rank, English
4,057
“M” headwords

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - Humid, or hot and humid.

Corpus desk

Index EN-muggy · muggy · English

muggy · rank #51,266 · 0 variants · 0 confusables

  • FREQ-RARE #51,266
  • LEN-MID 5 letters
  • VOW-2 2 vowels
  • CONFUS-0 No pairs
  • VAR-0 0 variants
  • BOOK-MID 4,057
  • PHOTO-FINISH mouton

Nearest frequency peer: mouton (-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.

Long-tail ranks near “muggy”

Sparse band: bars invert rank so rarer forms read shorter

corpus weight

What this shows Long-tail view: where “muggy” sits against similarly uncommon English ranks.

Source FrequencyWords open word-frequency list As of September 3, 2026
Key facts for muggy
PropertyValue
Headwordmuggy
LanguageEnglish
Part of speechAdjective
IPA/ˈmʌɡi/
Letters5
Frequency rank#51,266
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Long-tail rank of “muggy” in English

Word frequency stretches from the small set of words we reach for constantly (left) out to the long tail barely used once in a while (right).muggyfalls in this rarity band:

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

The axis is logarithmic, with each marked tick roughly ten times rarer than the last. Rare peers in the same band: “mouton” (#51,265), “mulled” (#51,267), “multiplicative” (#51,268). Among 4,057 “M” headwords, “muggy” is #51,266. Source: FrequencyWords open word-frequency list.

Rare enough to double-check

muggy is uncommon English at frequency #51,266 among 4,057 “M” headwords, classed as anadjective, transcribed /ˈmʌɡi/. Rarity is why readers land here mid-draft. 3 senses are on record.

Zero misspellings are on record for muggy in our index, since its letter sequence doesn't invite the usual edit-distance slips. Our confusable-pair dataset has no match for it, which typically means the spelling is too distinctive to be mistaken for another word.

Etymologically, the entry records: From dialectal English mug (“fog, mist; Scotch mist”) + -y, ultimately from Old Norse mugga (“drizzle, mist”); borrowed some time before 1390, when a derived verb, Middle English mugen (“of a fog: to drizzle”), is attested. The correct English form is muggy, spelled M-U-G-G-Y.

Definition

  1. 1
    Humid, or hot and humid.
  2. 2
    Wet or mouldy.
  3. 3
    Drunk.

Recorded use

Wiktionary examples

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

  1. The next was a very unpropitious morning for a journey—muggy, damp, and drizzly.
  2. What struck me as the most curious thing about this wonderful river was: how did the air keep fresh? It was muggy and thick, no doubt, but still not sufficiently so to render it bad or even remarkably unpleasant.

Etymology

From dialectal English mug (“fog, mist; Scotch mist”) + -y, ultimately from Old Norse mugga (“drizzle, mist”); borrowed some time before 1390, when a derived verb, Middle English mugen (“of a fog: to drizzle”), is attested.

Synonyms

Antonyms

This word in other languages

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.

Frequently Asked Questions

How do you spell "muggy"?
"muggy" is spelled M-U-G-G-Y. The IPA pronunciation is /ˈmʌɡi/.
What does "muggy" mean?
As an adjective, "muggy" means: Humid, or hot and humid.
How do you pronounce "muggy"?
The IPA (International Phonetic Alphabet) transcription for "muggy" is /ˈmʌɡi/. 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 "muggy"?
From dialectal English mug (“fog, mist; Scotch mist”) + -y, ultimately from Old Norse mugga (“drizzle, mist”); borrowed some time before 1390, when a derived verb, Middle English mugen (“of a fog: to drizzle”), is attested. 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 "muggy", not the corpus desk frequency band.

Same letter count

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

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

Source: FrequencyWords open word-frequency list