improbation

noun

"improbation" is a 11-letter English headword indexed on PlainSpell.

The verdict

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

Unranked
below top-frequency English
11
letters

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

Corpus desk

Index EN-improbation · improbation · English

improbation · unranked · 0 variants · 0 confusables

  • FREQ-UNRANKED Unranked
  • LEN-MEGA 11 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 improbation
PropertyValue
Headwordimprobation
LanguageEnglish
Part of speechNoun
Letters11
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Long-tail rank of “improbation” in English

improbationfalls 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

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

The misspelling generator found no plausible variants for improbation, which points to an orthography that plays by predictable English rules. Our confusable-pair dataset has no match for it, which usually means its spelling is distinct enough that readers don't reach for a similar-looking word instead.

Etymologically, the entry records: Latin improbatio. The correct English form is improbation, spelled I-M-P-R-O-B-A-T-I-O-N.

Definition

  1. 1
    disapproval
  2. 2
    The act by which falsehood and forgery are proved; an action brought for the purpose of having some instrument declared false or forged.

Recorded use

Wiktionary example

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

  1. the best expedient which Improbation occurred to the lawyers of those days , was afforded by the action of reduction - improbation

Etymology

Latin improbatio.

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 "improbation"?
"improbation" is spelled I-M-P-R-O-B-A-T-I-O-N.
What does "improbation" mean?
As a noun, "improbation" means: disapproval
What is the origin of the word "improbation"?
Latin improbatio. 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