defeasible
[dɪˈfiːzɪbəɫ]
"defeasible" is a 10-letter English headword indexed on PlainSpell.
The verdict
“defeasible” is outside the top-ranked English vocabulary, used as an adjective - the kind of word writers most often double-check.
- Unranked
- below top-frequency English
- 10
- letters
According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - Capable of being defeated, terminated, annulled, voided or invalidated.
| Property | Value |
|---|---|
| Headword | defeasible |
| Language | English |
| Part of speech | Adjective |
| IPA | [dɪˈfiːzɪbəɫ] |
| Letters | 10 |
| Misspellings tracked | 0 |
| Confusable pairs | 0 |
| Source | Wiktionary (kaikki.org) |
Where “defeasible” sits in English frequency
Spelling & Dictionary Insight
The English entry for defeasible is 10 letters long, classified as an adjective, and transcribed in the International Phonetic Alphabet as [dɪˈfiːzɪbəɫ]. It sits outside the most-frequent rank tiers, which is often why uncommon words generate more spelling variants per reader. The dominant gloss from Wiktionary reads: "Capable of being defeated, terminated, annulled, voided or invalidated.".
The misspelling generator found no plausible variants for defeasible, which points to an orthography that plays by predictable English rules. It is not paired with a close-neighbour confusable in our dataset, since nothing in our dataset looks or sounds close enough to cause mix-ups.
Etymologically, the entry records: Back-formation from defeasance + -ible, from Anglo-Norman defesaunce, Old French desfaisance, a deverbal noun from desfaire (“to undo”) (Modern French défaire), from des- (“un-, apart”) + fere, faire (“to do”) + -able, reflecting Latin dis- + facere + -ābil… The correct English form is defeasible, spelled D-E-F-E-A-S-I-B-L-E.
Definition
- 1Capable of being defeated, terminated, annulled, voided or invalidated.
Etymology
Back-formation from defeasance + -ible, from Anglo-Norman defesaunce, Old French desfaisance, a deverbal noun from desfaire (“to undo”) (Modern French défaire), from des- (“un-, apart”) + fere, faire (“to do”) + -able, reflecting Latin dis- + facere + -ābilis. Near-doublet of defeatable.
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
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Using “defeasible”
The practical upshot for anyone who landed here from a spell-check.
- The one correct English spelling is D-E-F-E-A-S-I-B-L-E - every other letter order is a misspelling in standard orthography.
- Say it as [dɪˈfiːzɪbəɫ] (IPA); tap the speaker on the pronunciation badge to hear it where audio exists.
- 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.