irrelevancy

noun

"irrelevancy" is a 11-letter English headword indexed on PlainSpell.

The verdict

“irrelevancy” is uncommon English (frequency #98,270 among 2,140 “I” headwords), classed as a noun. The kind of spelling people second-guess.

#98,270
frequency rank, English
2,140
“I” headwords

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - The quality of being irrelevant or inapplicable; lack of pertinence or connection.

Corpus desk

Index EN-irrelevancy · irrelevancy · English

irrelevancy · rank #98,270 · 0 variants · 0 confusables

  • FREQ-RARE #98,270
  • LEN-MEGA 11 letters
  • VOW-5 5 vowels
  • CONFUS-0 No pairs
  • VAR-0 0 variants
  • BOOK-MID 2,140
  • PHOTO-FINISH Ioannis

Nearest frequency peer: Ioannis (-1 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 “irrelevancy”

Sparse band: bars invert rank so rarer forms read shorter

corpus weight

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

Source FrequencyWords open word-frequency list As of September 3, 2026
Key facts for irrelevancy
PropertyValue
Headwordirrelevancy
LanguageEnglish
Part of speechNoun
Letters11
Frequency rank#98,270
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Long-tail rank of “irrelevancy” in English

Word frequency stretches from the small set of words we reach for constantly (left) out to the long tail barely used once in a while (right).irrelevancyfalls in this rarity band:

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

The axis is logarithmic, with each marked tick roughly ten times rarer than the last. Rare peers in the same band: “Ioannis” (#98,269), “irritatingly” (#98,271), “interlink” (#98,267). Among 2,140 “I” headwords, “irrelevancy” is #98,270. Source: FrequencyWords open word-frequency list.

Rare enough to double-check

irrelevancy is uncommon English at frequency #98,270 among 2,140 “I” headwords, classed as anoun. Rarity is why readers land here mid-draft. 2 senses are on record.

We couldn't generate a plausible misspelling set for irrelevancy, which points to an orthography that plays by predictable English rules. Our confusable-pair dataset has no match for it, since its spelling is unusual enough that it doesn't cluster with a lookalike.

Etymologically, the entry records: From ir- + relevancy or irrelevant + -cy. The correct English form is irrelevancy, spelled I-R-R-E-L-E-V-A-N-C-Y.

Definition

  1. 1
    The quality of being irrelevant or inapplicable; lack of pertinence or connection.
  2. 2
    A thing that is irrelevant—having no bearing on the subject of discussion.

Recorded use

Wiktionary examples

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

  1. To believe that such talk really ever came out of people's mouths would be to believe that there was a time when time was of no value to a person who thought he had something to say; when it was the custom to spread a two-minute remark out to ten; when a man's mouth was a rolling-mill, and busied itself all day long in turning four-foot pigs of thought in…
  2. "You've been and taken my Japanese umbrella." "I won't have him making an exhibition of himself," said Cripps, ignoring the irrelevancy.

Etymology

From ir- + relevancy or irrelevant + -cy.

Synonyms

Antonyms

This word in other languages

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 "irrelevancy"?
"irrelevancy" is spelled I-R-R-E-L-E-V-A-N-C-Y.
What does "irrelevancy" mean?
As a noun, "irrelevancy" means: The quality of being irrelevant or inapplicable; lack of pertinence or connection.
What is the origin of the word "irrelevancy"?
From ir- + relevancy or irrelevant + -cy. 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.

Similar English words by spelling shape

Same letter count and similar misspelling depth for "irrelevancy", not the corpus desk frequency band.

Same letter count

Frequency-ranked English headwords with 11 letters (nearest by frequency rank).

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

Source: FrequencyWords open word-frequency list