infeasibility

noun

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

The verdict

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

Unranked
below top-frequency English
13
letters

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - The state of being infeasible or impractical.

Corpus desk

Index EN-infeasibility · infeasibility · English

infeasibility · unranked · 0 variants · 0 confusables

  • FREQ-UNRANKED Unranked
  • LEN-MEGA 13 letters
  • VOW-7 7 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 infeasibility
PropertyValue
Headwordinfeasibility
LanguageEnglish
Part of speechNoun
Letters13
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Long-tail rank of “infeasibility” in English

infeasibilitysits beyond the 100,000 most-frequent English words, in the long tail of technical, archaic, or otherwise rare vocabulary where spelling doubt tends to strike hardest.

Beyond rank #100,000. Source: FrequencyWords open word-frequency list.

Rare enough to double-check

infeasibility is uncommon English outside the top frequency list, classed as anoun. Rarity is why readers land here mid-draft. Gloss: "The state of being infeasible or impractical.".

infeasibility has no tracked misspelling variants, which points to an orthography that plays by predictable English rules. We don't track a confusable pairing for this entry, since nothing in our dataset looks or sounds close enough to cause mix-ups.

Etymologically, the entry records: From in- + feasibility. The correct English form is infeasibility, spelled I-N-F-E-A-S-I-B-I-L-I-T-Y.

Definition

  1. 1
    The state of being infeasible or impractical.

Etymology

From in- + feasibility.

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 "infeasibility"?
"infeasibility" is spelled I-N-F-E-A-S-I-B-I-L-I-T-Y.
What does "infeasibility" mean?
As a noun, "infeasibility" means: The state of being infeasible or impractical.
What is the origin of the word "infeasibility"?
From in- + feasibility. 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