unconformity

noun

By · According to Wiktionary data (CC BY-SA) ·

"unconformity" is a 12-letter English headword indexed on PlainSpell.

The verdict

“unconformity” is uncommon English (frequency #99,974 among 1,433 “U” headwords), classed as a noun. The kind of spelling people second-guess.

#99,974
frequency rank, English
1,433
“U” headwords

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - A lack of conformity.

Corpus desk

Index EN-unconformity · unconformity · English

unconformity · rank #99,974 · 0 variants · 0 confusables

  • FREQ-RARE #99,974
  • LEN-MEGA 12 letters
  • VOW-5 5 vowels
  • CONFUS-0 No pairs
  • VAR-0 0 variants
  • BOOK-MID 1,433
  • PHOTO-FINISH uncompromisin…

Nearest frequency peer: uncompromisingly (-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 “unconformity”

Sparse band: bars invert rank so rarer forms read shorter

corpus weight

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

Source FrequencyWords open word-frequency list As of September 3, 2026
Key facts for unconformity
PropertyValue
Headwordunconformity
LanguageEnglish
Part of speechNoun
Letters12
Frequency rank#99,974
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Long-tail rank of “unconformity” 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).unconformityfalls 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: “uncompromisingly” (#99,973), “unconventionally” (#99,975), “unbanked” (#99,972). Among 1,433 “U” headwords, “unconformity” is #99,974. Source: FrequencyWords open word-frequency list.

Rare enough to double-check

unconformity is uncommon English at frequency #99,974 among 1,433 “U” headwords, classed as anoun. Rarity is why readers land here mid-draft. 2 senses are on record.

unconformity doesn't appear in our generated misspelling index, a straightforward case of a spelling with little room for common typos. It is not paired with a close-neighbour confusable in our dataset, which typically means the spelling is too distinctive to be mistaken for another word.

Etymologically, the entry records: From un- + conformity. The correct English form is unconformity, spelled U-N-C-O-N-F-O-R-M-I-T-Y.

Definition

  1. 1
    A lack of conformity.
  2. 2
    A gap in the stratigraphic record at a site, resulting from erosion having outpaced deposition over the interval in question.

Etymology

From un- + conformity.

Synonyms

discompliancedisconformityenormityinconformitynoncompliancenonconformancenonconformitytransgressionuncomplianceunconformityunconventionalityviolation

Antonyms

conformity

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 "unconformity"?
"unconformity" is spelled U-N-C-O-N-F-O-R-M-I-T-Y.
What does "unconformity" mean?
As a noun, "unconformity" means: A lack of conformity.
What is the origin of the word "unconformity"?
From un- + conformity. 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 "unconformity", not the corpus desk frequency band.

Same letter count

Frequency-ranked English headwords with 12 letters (nearest by frequency rank).

thermography#99,934teambuilding#99,927redecoration#99,759preamplifier#99,724

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

Source: FrequencyWords open word-frequency list