inflexibility

noun

"inflexibility" is a 13-letter English headword indexed on PlainSpell.

The verdict

“inflexibility” is uncommon English (frequency #75,991 among 2,140 “I” headwords), classed as a noun. The kind of spelling people second-guess.

#75,991
frequency rank, English
2,140
“I” headwords

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - The quality or state of being inflexible, or not capable of being bent or changed; unyielding stiffness

Corpus desk

Index EN-inflexibility · inflexibility · English

inflexibility · rank #75,991 · 0 variants · 0 confusables

  • FREQ-RARE #75,991
  • LEN-MEGA 13 letters
  • VOW-6 6 vowels
  • CONFUS-0 No pairs
  • VAR-0 0 variants
  • BOOK-MID 2,140
  • PHOTO-FINISH indiscipline

Nearest frequency peer: indiscipline (-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 “inflexibility”

Sparse band: bars invert rank so rarer forms read shorter

corpus weight

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

Source FrequencyWords open word-frequency list As of September 3, 2026
Key facts for inflexibility
PropertyValue
Headwordinflexibility
LanguageEnglish
Part of speechNoun
Letters13
Frequency rank#75,991
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Long-tail rank of “inflexibility” in English

This scale runs from the tiny cluster of words that carry ordinary speech (left) to the long tail of words almost nobody reaches for (right).inflexibilityfalls 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: “indiscipline” (#75,989), “innervation” (#75,993), “Indic” (#75,988). Among 2,140 “I” headwords, “inflexibility” is #75,991. Source: FrequencyWords open word-frequency list.

Rare enough to double-check

inflexibility is uncommon English at frequency #75,991 among 2,140 “I” headwords, classed as anoun. Rarity is why readers land here mid-draft. Gloss: "The quality or state of being inflexible, or not capable of being bent or changed; unyielding stiffness".

Our edit-distance generator produced no likely misspellings for inflexibility, and the word's spelling is regular enough that our generator found nothing worth flagging. No close-neighbour confusable shows up for this headword in our dataset, which typically means the spelling is too distinctive to be mistaken for another word.

Etymologically, the entry records: From French inflexibilité, from Old French inflectibilité. Equivalent to in- + flexibility or inflexible + -ity. The correct English form is inflexibility, spelled I-N-F-L-E-X-I-B-I-L-I-T-Y.

Definition

  1. 1
    The quality or state of being inflexible, or not capable of being bent or changed; unyielding stiffness

Etymology

From French inflexibilité, from Old French inflectibilité. Equivalent to in- + flexibility or inflexible + -ity.

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 "inflexibility"?
"inflexibility" is spelled I-N-F-L-E-X-I-B-I-L-I-T-Y.
What does "inflexibility" mean?
As a noun, "inflexibility" means: The quality or state of being inflexible, or not capable of being bent or changed; unyielding stiffness
What is the origin of the word "inflexibility"?
From French inflexibilité, from Old French inflectibilité. Equivalent to in- + flexibility or inflexible + -ity. 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 "inflexibility", not the corpus desk frequency band.

Same letter count

Frequency-ranked English headwords with 13 letters (nearest by frequency rank).

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

Source: FrequencyWords open word-frequency list