muscleful

adj

"muscleful" is a 9-letter English headword indexed on PlainSpell.

The verdict

“muscleful” is uncommon English (outside the top frequency list), classed as an adjective. The kind of spelling people second-guess.

Unranked
below top-frequency English
9
letters

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - Full of or having a lot of muscles; muscular.

Corpus desk

Index EN-muscleful · muscleful · English

muscleful · unranked · 0 variants · 0 confusables

  • FREQ-UNRANKED Unranked
  • LEN-LONG 9 letters
  • VOW-3 3 vowels
  • CONFUS-0 No pairs
  • VAR-0 0 variants
  • BOOK-THIN "M" thin
  • PHOTO-UNK Peer pending

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.

Key facts for muscleful
PropertyValue
Headwordmuscleful
LanguageEnglish
Part of speechAdjective
Letters9
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Long-tail rank of “muscleful” in English

musclefulranks outside the top 100,000 English headwords, in the long tail of specialist, archaic, or seldom-used vocabulary, exactly the territory where a reader stops mid-sentence to double-check spelling.

Beyond rank #100,000. Source: FrequencyWords open word-frequency list.

Rare enough to double-check

muscleful is uncommon English outside the top frequency list, classed as anadjective. Rarity is why readers land here mid-draft. Gloss: "Full of or having a lot of muscles; muscular.".

The misspelling generator found no plausible variants for muscleful, typically a sign the spelling maps closely to how the word sounds. This entry stands alone in our confusable dataset, which typically means the spelling is too distinctive to be mistaken for another word.

Etymologically, the entry records: From muscle + -ful. The correct English form is muscleful, spelled M-U-S-C-L-E-F-U-L.

Definition

  1. 1
    Full of or having a lot of muscles; muscular.

Etymology

From muscle + -ful.

Synonyms

Definitions, pronunciation, and etymology for this entry are drawn from Wiktionary via the kaikki.org structured extract (CC BY-SA). See the methodology for how each field is sourced and updated.

Frequently Asked Questions

How do you spell "muscleful"?
"muscleful" is spelled M-U-S-C-L-E-F-U-L.
What does "muscleful" mean?
As an adjective, "muscleful" means: Full of or having a lot of muscles; muscular.
What is the origin of the word "muscleful"?
From muscle + -ful. 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.

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

Source: FrequencyWords open word-frequency list