clueful

/ˈkluː.fəl/

//ˈkluː.fəl// adj

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

The verdict

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

Unranked
below top-frequency English
7
letters

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - Knowledgeable and well-informed.

Corpus desk

Index EN-clueful · clueful · English

clueful · unranked · 0 variants · 0 confusables

  • FREQ-UNRANKED Unranked
  • LEN-LONG 7 letters
  • VOW-3 3 vowels
  • CONFUS-0 No pairs
  • VAR-0 0 variants
  • BOOK-THIN "C" 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 clueful
PropertyValue
Headwordclueful
LanguageEnglish
Part of speechAdjective
IPA/ˈkluː.fəl/
Letters7
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Long-tail rank of “clueful” in English

cluefulranks 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

clueful is uncommon English outside the top frequency list, classed as anadjective, transcribed /ˈkluː.fəl/. Rarity is why readers land here mid-draft. Gloss: "Knowledgeable and well-informed.".

clueful doesn't appear in our generated misspelling index, a sign its spelling follows regular English conventions. We don't track a confusable pairing for this entry, which typically means the spelling is too distinctive to be mistaken for another word.

Etymologically, the entry records: From clue + -ful, by analogy with clueless. The correct English form is clueful, spelled C-L-U-E-F-U-L.

Definition

  1. 1
    Knowledgeable and well-informed.

Recorded use

Wiktionary examples

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

  1. While the mentorship opportunities in recent startup hubs like Berlin and Stockholm have increased dramatically in recent years, the mentors in Silicon Valley are still some of the most experienced and clueful in the world (let's call that factor "X").
  2. It's rare for a television series about technology to get anything right about how computers work, let alone how hackers do their jobs. But in a pop culture landscape flooded with shows like CSI: Cyber and Scorpion, the CBS show Person of Interest stood out as smart, relevant, and mostly clueful about how networked devices actually function.

Etymology

From clue + -ful, by analogy with clueless.

Antonyms

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 "clueful"?
"clueful" is spelled C-L-U-E-F-U-L. The IPA pronunciation is /ˈkluː.fəl/.
What does "clueful" mean?
As an adjective, "clueful" means: Knowledgeable and well-informed.
How do you pronounce "clueful"?
The IPA (International Phonetic Alphabet) transcription for "clueful" is /ˈkluː.fəl/. 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 "clueful"?
From clue + -ful, by analogy with clueless. 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