infeasible
"infeasible" is a 10-letter English headword indexed on PlainSpell.
The verdict
“infeasible” is an uncommon English word, ranked #69,953 in English word frequency and used as an adjective.
- #69,953
- frequency rank, English
- 10
- letters
According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - Not feasible.
| Property | Value |
|---|---|
| Headword | infeasible |
| Language | English |
| Part of speech | Adjective |
| Letters | 10 |
| Frequency rank | #69,953 |
| Misspellings tracked | 0 |
| Confusable pairs | 0 |
| Source | Wiktionary (kaikki.org) |
Where “infeasible” sits in English frequency
Spelling & Dictionary Insight
The English entry for infeasible is 10 letters long, classified as an adjective. Corpus data places it at rank #69,953 in overall English word frequency, marking it as uncommon enough that many writers pause before typing it. The dominant gloss from Wiktionary reads: "Not feasible.".
We couldn't generate a plausible misspelling set for infeasible, since its letter sequence doesn't invite the usual edit-distance slips. Our dataset records no confusable match here, since nothing in our dataset looks or sounds close enough to cause mix-ups.
Etymologically, the entry records: From in- + feasible. Cognate to French infaisable. The correct English form is infeasible, spelled I-N-F-E-A-S-I-B-L-E.
Definition
- 1Not feasible.
Etymology
From in- + feasible. Cognate to French infaisable.
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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Using “infeasible”
The practical upshot for anyone who landed here from a spell-check.
- The one correct English spelling is I-N-F-E-A-S-I-B-L-E - every other letter order is a misspelling in standard orthography.
- Browse more English words and confusable pairs in the same reference. English words
Data Source
Wiktionary (via kaikki.org), licensed under CC BY-SA & GFDL. Word ordering uses an open word-frequency list; misspelling variants are generated by edit-distance from the correct headword.