infeasibly

/ɪnˈfiːzɪb(ə)li/

//ɪnˈfiːzɪb(ə)li// adv

"infeasibly" is a 10-letter English headword indexed on PlainSpell.

The verdict

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

Unranked
below top-frequency English
10
letters

According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - In a manner that is not feasible.

Corpus desk

Index EN-infeasibly · infeasibly · English

infeasibly · unranked · 0 variants · 0 confusables

  • FREQ-UNRANKED Unranked
  • LEN-MEGA 10 letters
  • VOW-5 5 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 infeasibly
PropertyValue
Headwordinfeasibly
LanguageEnglish
Part of speechAdverb
IPA/ɪnˈfiːzɪb(ə)li/
Letters10
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Where “infeasibly” sits in English frequency

infeasibly falls outside the top-100,000 ranked English words, the long-tail zone of technical, archaic, or low-frequency vocabulary, exactly where readers second-guess spellings most.

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

Rare enough to double-check

infeasibly is uncommon English outside the top frequency list, classed as anadverb, transcribed /ɪnˈfiːzɪb(ə)li/. Rarity is why readers land here mid-draft. Gloss: "In a manner that is not feasible.".

infeasibly has no tracked misspelling variants, typically a sign the spelling maps closely to how the word sounds. It is not paired with a close-neighbour confusable in our dataset, which tends to mean the word is visually distinctive enough to stand on its own.

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

Definition

  1. 1
    In a manner that is not feasible.

Etymology

From in- + feasibly.

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.

PlainSpell is rendered directly from structured Wiktionary extracts and open word-frequency lists, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of May 6, 2026. Primary sources: Wiktionary (via kaikki.org) and FrequencyWords.

Frequently Asked Questions

How do you spell "infeasibly"?
"infeasibly" is spelled I-N-F-E-A-S-I-B-L-Y. The IPA pronunciation is /ɪnˈfiːzɪb(ə)li/.
What does "infeasibly" mean?
As an adverb, "infeasibly" means: In a manner that is not feasible.
How do you pronounce "infeasibly"?
The IPA (International Phonetic Alphabet) transcription for "infeasibly" is /ɪnˈfiːzɪb(ə)li/. Click the speaker icon on the pronunciation badge above to hear it spoken aloud where audio is available.
What is the origin of the word "infeasibly"?
From in- + feasibly. 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.
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.

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

Source: FrequencyWords open word-frequency list