doubtable

adj

"doubtable" is a 9-letter English headword indexed on PlainSpell.

The verdict

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

Unranked
below top-frequency English
9
letters

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - Capable of being doubted; doubtful; dubious; dubitable. See usage notes below.

Corpus desk

Index EN-doubtable · doubtable · English

doubtable · 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

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 doubtable
PropertyValue
Headworddoubtable
LanguageEnglish
Part of speechAdjective
Letters9
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Long-tail rank of “doubtable” in English

doubtablefalls 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

doubtable is uncommon English outside the top frequency list, classed as anadjective. Rarity is why readers land here mid-draft. 2 senses are on record.

We couldn't generate a plausible misspelling set for doubtable, and the word's spelling is regular enough that our generator found nothing worth flagging. This entry stands alone in our confusable dataset, which tends to mean the word is visually distinctive enough to stand on its own.

Etymologically, the entry records: From Middle English doutable, from Old French doutable, dotable, equivalent to doubt + -able. The correct English form is doubtable, spelled D-O-U-B-T-A-B-L-E.

Definition

  1. 1
    Capable of being doubted; doubtful; dubious; dubitable. See usage notes below.
  2. 2
    Fearsome; redoubtable.

Recorded use

Wiktionary example

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

  1. Descartes adopts the tool of a radical skepticism, submitting to question established beliefs, exposing them to the test of doubt, breaking them down when they prove doubtable.

Etymology

From Middle English doutable, from Old French doutable, dotable, equivalent to doubt + -able.

Synonyms

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 "doubtable"?
"doubtable" is spelled D-O-U-B-T-A-B-L-E.
What does "doubtable" mean?
As an adjective, "doubtable" means: Capable of being doubted; doubtful; dubious; dubitable. See usage notes below.
What is the origin of the word "doubtable"?
From Middle English doutable, from Old French doutable, dotable, equivalent to doubt + -able. 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.

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

Source: FrequencyWords open word-frequency list