unfrequent

adj

"unfrequent" is a 10-letter English headword indexed on PlainSpell.

The verdict

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

Unranked
below top-frequency English
10
letters

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - Not frequent; not common; not happening often; infrequent.

Corpus desk

Index EN-unfrequent · unfrequent · English

unfrequent · unranked · 0 variants · 0 confusables

  • FREQ-UNRANKED Unranked
  • LEN-MEGA 10 letters
  • VOW-4 4 vowels
  • CONFUS-0 No pairs
  • VAR-0 0 variants
  • BOOK-THIN "U" 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 unfrequent
PropertyValue
Headwordunfrequent
LanguageEnglish
Part of speechAdjective
Letters10
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Long-tail rank of “unfrequent” in English

unfrequentfalls outside the top-100,000 ranked English words, the long-tail zone of technical, archaic, or low-frequency vocabulary, exactly where readers second-guess spellings most.

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

Rare enough to double-check

unfrequent is uncommon English outside the top frequency list, classed as anadjective. Rarity is why readers land here mid-draft. Gloss: "Not frequent; not common; not happening often; infrequent.".

We couldn't generate a plausible misspelling set for unfrequent, suggesting the orthography follows predictable English patterns. No confusable counterpart is on file for this word, which typically means the spelling is too distinctive to be mistaken for another word.

Etymologically, the entry records: From un- (not) + frequent. The correct English form is unfrequent, spelled U-N-F-R-E-Q-U-E-N-T.

Definition

  1. 1
    Not frequent; not common; not happening often; infrequent.

Recorded use

Wiktionary examples

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

  1. He was labouring under a pleurisy, which is not unfrequent in the mountainous region, at this season.
  2. It was no unfrequent event, however, for vessels to be lost.

Etymology

From un- (not) + frequent.

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 "unfrequent"?
"unfrequent" is spelled U-N-F-R-E-Q-U-E-N-T.
What does "unfrequent" mean?
As an adjective, "unfrequent" means: Not frequent; not common; not happening often; infrequent.
What is the origin of the word "unfrequent"?
From un- (not) + frequent. 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