infallibility
/ɪnˌfæləˈbɪləti/
"infallibility" is a 13-letter English headword indexed on PlainSpell.
The verdict
“infallibility” is uncommon English (frequency #57,457 among 2,140 “I” headwords), classed as a noun. The kind of spelling people second-guess.
- #57,457
- frequency rank, English
- 2,140
- “I” headwords
According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - The property of being infallible; the ability to never make a mistake.
Corpus desk
Index EN-infallibility · infallibility · English
infallibility · rank #57,457 · 0 variants · 0 confusables
- FREQ-RARE #57,457
- LEN-MEGA 13 letters
- VOW-6 6 vowels
- CONFUS-0 No pairs
- VAR-0 0 variants
- BOOK-MID 2,140
- PHOTO-FINISH inductance
Nearest frequency peer: inductance (-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 “infallibility”
Sparse band: bars invert rank so rarer forms read shorter
- impartially
impartially
42,551 corpus weight
- impermeable
impermeable
42,550 corpus weight
- inborn
inborn
42,546 corpus weight
- inductance
inductance
42,545 corpus weight
- infallibili…
infallibility
42,544 corpus weight
- inglorious
inglorious
42,542 corpus weight
What this shows Long-tail view: where “infallibility” sits against similarly uncommon English ranks.
| Property | Value |
|---|---|
| Headword | infallibility |
| Language | English |
| Part of speech | Noun |
| IPA | /ɪnˌfæləˈbɪləti/ |
| Letters | 13 |
| Frequency rank | #57,457 |
| Misspellings tracked | 0 |
| Confusable pairs | 0 |
| Source | Wiktionary (kaikki.org) |
Long-tail rank of “infallibility” in English
Rare enough to double-check
infallibility is uncommon English at frequency #57,457 among 2,140 “I” headwords, classed as anoun, transcribed /ɪnˌfæləˈbɪləti/. Rarity is why readers land here mid-draft. Gloss: "The property of being infallible; the ability to never make a mistake.".
Zero misspellings are on record for infallibility in our index, which points to an orthography that plays by predictable English rules. No close-neighbour confusable shows up for this headword in our dataset, which tends to mean the word is visually distinctive enough to stand on its own.
This entry's etymology isn't recorded, so any spelling logic here comes from how the word's sounds map to letters, not a documented origin story. The correct English form is infallibility, spelled I-N-F-A-L-L-I-B-I-L-I-T-Y.
Definition
- 1The property of being infallible; the ability to never make a mistake.
Recorded use
Wiktionary exampleThese source excerpts show how infallibility appears in context. They illustrate usage; the definition above remains the entry’s reference meaning.
The myth of the infallibility and objectivity of medicine and all science has come to replace religious myths.
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
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Similar English words by spelling shape
Same letter count and similar misspelling depth for "infallibility", not the corpus desk frequency band.
Same letter count
Frequency-ranked English headwords with 13 letters (nearest by frequency rank).