usefull

/ˈjuːsfʊl/

//ˈjuːsfʊl// adj

"usefull" is a 7-letter English headword indexed on PlainSpell.

The verdict

“usefull” is uncommon English (frequency #71,199 among 1,433 “U” headwords), classed as an adjective. The kind of spelling people second-guess.

#71,199
frequency rank, English
1,433
“U” headwords

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - Obsolete form of useful.

Corpus desk

Index EN-usefull · usefull · English

usefull · rank #71,199 · 0 variants · 0 confusables

  • FREQ-RARE #71,199
  • LEN-LONG 7 letters
  • VOW-3 3 vowels
  • CONFUS-0 No pairs
  • VAR-0 0 variants
  • BOOK-MID 1,433
  • PHOTO-FINISH unenthusiastic

Nearest frequency peer: unenthusiastic (-2 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 “usefull”

Sparse band: bars invert rank so rarer forms read shorter

corpus weight

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

Source FrequencyWords open word-frequency list As of September 3, 2026
Key facts for usefull
PropertyValue
Headwordusefull
LanguageEnglish
Part of speechAdjective
IPA/ˈjuːsfʊl/
Letters7
Frequency rank#71,199
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Long-tail rank of “usefull” in English

This scale runs from the tiny cluster of words that carry ordinary speech (left) to the long tail of words almost nobody reaches for (right).usefullfalls in this rarity band:

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

Ticks step logarithmically, so each one marks a roughly tenfold drop in how often the word turns up. Rare peers in the same band: “unenthusiastic” (#71,197), “undiminished” (#71,196), “underwire” (#71,195). Among 1,433 “U” headwords, “usefull” is #71,199. Source: FrequencyWords open word-frequency list.

Rare enough to double-check

usefull is uncommon English at frequency #71,199 among 1,433 “U” headwords, classed as anadjective, transcribed /ˈjuːsfʊl/. Rarity is why readers land here mid-draft. Gloss: "Obsolete form of useful.".

No generated misspelling entries exist for usefull in our index, a sign its spelling follows regular English conventions. No confusable counterpart is on file for this word, which tends to mean the word is visually distinctive enough to stand on its own.

Wiktionary doesn't record an etymology for this headword, so its spelling is easiest to reason about phoneme by phoneme, absent a documented history. The correct English form is usefull, spelled U-S-E-F-U-L-L.

Definition

  1. 1
    Obsolete form of useful.

Recorded use

Wiktionary example

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

  1. For Pens, so usefull for Scholars to note the remarkables they read, with an impression easily deleble without prejudice to the Book.

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 "usefull"?
"usefull" is spelled U-S-E-F-U-L-L. The IPA pronunciation is /ˈjuːsfʊl/.
What does "usefull" mean?
As an adjective, "usefull" means: Obsolete form of useful.
How do you pronounce "usefull"?
The IPA (International Phonetic Alphabet) transcription for "usefull" is /ˈjuːsfʊl/. Click the speaker icon on the pronunciation badge above to hear it spoken aloud where audio is available.
What language does "usefull" come from?
"usefull" is a English word. PlainSpell's reference spans five languages -- English, Spanish, Portuguese, French, and German -- with definitions, pronunciations, and spelling data for each.
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 "usefull", not the corpus desk frequency band.

Same letter count

Frequency-ranked English headwords with 7 letters (nearest by frequency rank).

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

Source: FrequencyWords open word-frequency list