insincerity

noun

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

The verdict

“insincerity” is uncommon English (frequency #87,403 among 2,140 “I” headwords), classed as a noun. The kind of spelling people second-guess.

#87,403
frequency rank, English
2,140
“I” headwords

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - Property of being insincere, lacking sincerity or truthfulness.

Corpus desk

Index EN-insincerity · insincerity · English

insincerity · rank #87,403 · 0 variants · 0 confusables

  • FREQ-RARE #87,403
  • LEN-MEGA 11 letters
  • VOW-5 5 vowels
  • CONFUS-0 No pairs
  • VAR-0 0 variants
  • BOOK-MID 2,140
  • PHOTO-FINISH injun

Nearest frequency peer: injun (-2 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 “insincerity”

Sparse band: bars invert rank so rarer forms read shorter

corpus weight

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

Source FrequencyWords open word-frequency list As of September 3, 2026
Key facts for insincerity
PropertyValue
Headwordinsincerity
LanguageEnglish
Part of speechNoun
Letters11
Frequency rank#87,403
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Long-tail rank of “insincerity” 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).insincerityfalls 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: “injun” (#87,401), “inundate” (#87,406), “inhabitable” (#87,399). Among 2,140 “I” headwords, “insincerity” is #87,403. Source: FrequencyWords open word-frequency list.

Rare enough to double-check

insincerity is uncommon English at frequency #87,403 among 2,140 “I” headwords, classed as anoun. Rarity is why readers land here mid-draft. Gloss: "Property of being insincere, lacking sincerity or truthfulness.".

insincerity has no tracked misspelling variants, a sign its spelling follows regular English conventions. This headword has no recorded confusable partner, which tends to mean the word is visually distinctive enough to stand on its own.

Etymologically, the entry records: From in- + sincerity. The correct English form is insincerity, spelled I-N-S-I-N-C-E-R-I-T-Y.

Definition

  1. 1
    Property of being insincere, lacking sincerity or truthfulness.

Recorded use

Wiktionary example

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

  1. His insincerity was obvious to all; he was neither honest nor believable.

Etymology

From in- + sincerity.

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 "insincerity"?
"insincerity" is spelled I-N-S-I-N-C-E-R-I-T-Y.
What does "insincerity" mean?
As a noun, "insincerity" means: Property of being insincere, lacking sincerity or truthfulness.
What is the origin of the word "insincerity"?
From in- + sincerity. 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 "insincerity", 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