inconstancy

noun

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

The verdict

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

Unranked
below top-frequency English
11
letters

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - Lack of constancy; lack of consistency in thought, emotion or action.

Corpus desk

Index EN-inconstancy · inconstancy · English

inconstancy · unranked · 0 variants · 0 confusables

  • FREQ-UNRANKED Unranked
  • LEN-MEGA 11 letters
  • VOW-4 4 vowels
  • CONFUS-0 No pairs
  • VAR-0 0 variants
  • BOOK-THIN "I" 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 inconstancy
PropertyValue
Headwordinconstancy
LanguageEnglish
Part of speechNoun
Letters11
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Long-tail rank of “inconstancy” in English

inconstancyranks 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

inconstancy is uncommon English outside the top frequency list, classed as anoun. Rarity is why readers land here mid-draft. Gloss: "Lack of constancy; lack of consistency in thought, emotion or action.".

Our edit-distance generator produced no likely misspellings for inconstancy, and the word's spelling is regular enough that our generator found nothing worth flagging. This entry stands alone in our confusable dataset, since no other headword is close enough in sound or shape to pair with it.

Etymologically, the entry records: From in- + constancy or inconstant + -cy. The correct English form is inconstancy, spelled I-N-C-O-N-S-T-A-N-C-Y.

Definition

  1. 1
    Lack of constancy; lack of consistency in thought, emotion or action.

Recorded use

Wiktionary example

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

  1. Although she loved him for many years, his inconstancy eventually drove her to another.

Etymology

From in- + constancy or inconstant + -cy.

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). See the methodology for how each field is sourced and updated.

Frequently Asked Questions

How do you spell "inconstancy"?
"inconstancy" is spelled I-N-C-O-N-S-T-A-N-C-Y.
What does "inconstancy" mean?
As a noun, "inconstancy" means: Lack of constancy; lack of consistency in thought, emotion or action.
What is the origin of the word "inconstancy"?
From in- + constancy or inconstant + -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.

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

Source: FrequencyWords open word-frequency list