décidable

\de.si.dabl\

/\de.si.dabl\/ adj

The verdict

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

Unranked
below top-frequency French
9
letters

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - Dont on peut décider l’existence, les propriétés.

Corpus desk

Index FR-decidable · décidable · French

décidable · unranked · 0 variants · 0 confusables

  • FREQ-UNRANKED Unranked
  • LEN-LONG 9 letters
  • VOW-4 4 vowels
  • CONFUS-0 No pairs
  • VAR-0 0 variants
  • BOOK-THIN "D" thin
  • PHOTO-UNK Peer pending

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 décidable
PropertyValue
Headworddécidable
LanguageFrench
Part of speechAdjective
IPA\de.si.dabl\
Letters9
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Longue queue: rang de « décidable » en français

décidablereste hors des 100.000 mots français les plus fréquents, dans la longue queue du vocabulaire technique, archaïque ou rare, là où le doute d'orthographe frappe.

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

Rare enough to double-check

décidable is uncommon French outside the top frequency list, classed as anadjective, transcribed \de.si.dabl\. Rarity is why readers land here mid-draft. 2 senses are on record.

décidable doesn't appear in our generated misspelling index, a sign its spelling follows regular French conventions. We don't track a confusable pairing for this entry, which tends to mean the word is visually distinctive enough to stand on its own.

Our source data has no etymology on file for this entry, leaving phoneme-to-grapheme mapping as the best guide to its spelling rather than a borrowing history. The correct French form is décidable, spelled D-É-C-I-D-A-B-L-E.

Definition

  1. 1
    Dont on peut décider l’existence, les propriétés.
  2. 2
    Que l'on peut résoudre par un algorithme donné avec un nombre fini d'étapes.

Recorded use

Wiktionary example

These source excerpts show how décidable appears in context. They illustrate usage; the definition above remains the entry’s reference meaning.

  1. Une proposition, un énoncé, sont dits décidables dans une théorie axiomatique, si on peut les démontrer ou en démontrer la négation dans le cadre de cette théorie.

Antonyms

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). See the methodology for how each field is sourced and updated.

Frequently Asked Questions

How do you spell "décidable"?
"décidable" is spelled D-É-C-I-D-A-B-L-E. The IPA pronunciation is \de.si.dabl\.
What does "décidable" mean?
As an adjective, "décidable" means: Dont on peut décider l’existence, les propriétés.
How do you pronounce "décidable"?
The IPA (International Phonetic Alphabet) transcription for "décidable" is \de.si.dabl\. Click the speaker icon on the pronunciation badge above to hear it spoken aloud where audio is available.
What language does "décidable" come from?
"décidable" is a French word. PlainSpell's reference spans five languages -- English, Spanish, Portuguese, French, and German -- with definitions, pronunciations, and spelling data for each.
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