instabil

\ˈɪnʃtabiːl\

/\ˈɪnʃtabiːl\/ adj

The verdict

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

Unranked
below top-frequency French
8
letters

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - Instable.

Corpus desk

Index FR-instabil · instabil · French

instabil · unranked · 0 variants · 0 confusables

  • FREQ-UNRANKED Unranked
  • LEN-LONG 8 letters
  • VOW-3 3 vowels
  • CONFUS-0 No pairs
  • VAR-0 0 variants
  • BOOK-THIN "I" 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 instabil
PropertyValue
Headwordinstabil
LanguageFrench
Part of speechAdjective
IPA\ˈɪnʃtabiːl\
Letters8
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Longue queue: rang de « instabil » en français

instabilsiège au-delà des 100.000 formes les plus fréquentes du français, dans la traîne du lexique spécialisé ou peu usité.

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

Rare enough to double-check

instabil is uncommon French outside the top frequency list, classed as anadjective, transcribed \ˈɪnʃtabiːl\. Rarity is why readers land here mid-draft. Gloss: "Instable.".

Our edit-distance generator produced no likely misspellings for instabil, which points to an orthography that plays by predictable French rules. No confusable counterpart is on file for this word, suggesting its spelling stands apart enough that readers rarely confuse it with something else.

This headword's origin isn't recorded in our source data, so its spelling pattern is best understood through pronunciation rather than a traceable origin. The correct French form is instabil, spelled I-N-S-T-A-B-I-L.

Definition

  1. 1
    Instable.

Recorded use

Wiktionary example

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

  1. Uranatome sind instabil und emittieren Partikel, die sich mit einem Geigerzähler nachweisen lassen.

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 "instabil"?
"instabil" is spelled I-N-S-T-A-B-I-L. The IPA pronunciation is \ˈɪnʃtabiːl\.
What does "instabil" mean?
As an adjective, "instabil" means: Instable.
How do you pronounce "instabil"?
The IPA (International Phonetic Alphabet) transcription for "instabil" is \ˈɪnʃtabiːl\. Click the speaker icon on the pronunciation badge above to hear it spoken aloud where audio is available.
What language does "instabil" come from?
"instabil" is a French word. PlainSpell covers definitions, pronunciations, and spelling data across English, Spanish, Portuguese, French, and German.
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