sluggish
/ˈslʌɡɪʃ/
"sluggish" is a 8-letter English headword indexed on PlainSpell.
The verdict
“sluggish” is a moderately-common English word, ranked #21,066 in English word frequency and used as an adjective.
- #21,066
- frequency rank, English
- 8
- letters
- 11
- tracked misspellings
- 1
- confusable pair
According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - Habitually idle and lazy; slothful; dull; inactive
Visual similarity to commonly confused words
How many letter changes separate each confused pair (Levenshtein distance, normalized).
Source: PlainSpell confusable corpus (Wiktionary, CC BY-SA).
| Property | Value |
|---|---|
| Headword | sluggish |
| Language | English |
| Part of speech | Adjective |
| IPA | /ˈslʌɡɪʃ/ |
| Letters | 8 |
| Frequency rank | #21,066 |
| Misspellings tracked | 11 |
| Confusable pairs | 1 |
| Source | Wiktionary (kaikki.org) |
Where “sluggish” sits in English frequency
Spelling & Dictionary Insight
The English entry for sluggish is 8 letters long, classified as an adjective, and transcribed in the International Phonetic Alphabet as /ˈslʌɡɪʃ/. Corpus data places it at rank #21,066 in overall English word frequency, marking it as uncommon enough that many writers pause before typing it. Wiktionary records 5 distinct senses for this headword, so context determines which meaning a reader should apply.
Our generated misspelling index lists 11 likely wrong-spelling variants for sluggish, with forms such as "lsuggish", "slgugish", and "slluggish". 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 1 confusable-pair relationship, "slugging", where similar look or sound leads writers to substitute one word for another in context.
Etymologically, the entry records: From slug + -ish. The correct English form is sluggish, spelled S-L-U-G-G-I-S-H.
Definition
- 1Habitually idle and lazy; slothful; dull; inactive
- 2Slow; having little motion.
- 3Having no power to move oneself or itself; inert.
- 4Characteristic of a sluggard; dull; stupid; tame; simple.
- 5Exhibiting economic decline, inactivity, slow, or subnormal growth.
Etymology
From slug + -ish.
This word in other languages
Common misspellings
Also misspelled as: lsuggish,slgugish,slluggish,sluggihs,sluggishh,sluggissh,sluggsih,slugigsh,slugish,ssluggish,sulggish
Misspelling Pattern Breakdown
How far each generated variant is from the correct spelling of sluggish - measured in single-character edits (insert, delete, or substitute a letter). Larger bars are easier to catch; one-edit slips are the sneakiest.
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 "sluggish"?
What does "sluggish" mean?
What words are commonly confused with "sluggish"?
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Using “sluggish”
The practical upshot for anyone who landed here from a spell-check.
- The one correct English spelling is S-L-U-G-G-I-S-H - every other letter order is a misspelling in standard orthography.
- Say it as /ˈslʌɡɪʃ/ (IPA); tap the speaker on the pronunciation badge to hear it where audio exists.
- Don't mix it up with “slugging” - see the side-by-side comparison. sluggish vs slugging
- Browse more English words and confusable pairs in the same reference. English words
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.