disimprove

verb

"disimprove" is a 10-letter English headword indexed on PlainSpell.

The verdict

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

Unranked
below top-frequency English
10
letters

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

Corpus desk

Index EN-disimprove · disimprove · English

disimprove · unranked · 0 variants · 0 confusables

  • FREQ-UNRANKED Unranked
  • LEN-MEGA 10 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 disimprove
PropertyValue
Headworddisimprove
LanguageEnglish
Part of speechVerb
Letters10
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Long-tail rank of “disimprove” in English

disimprovesits beyond the 100,000 most-frequent English words, in the long tail of technical, archaic, or otherwise rare vocabulary where spelling doubt tends to strike hardest.

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

Rare enough to double-check

disimprove is uncommon English outside the top frequency list, classed as averb. Rarity is why readers land here mid-draft. 3 senses are on record.

The misspelling generator found no plausible variants for disimprove, and the word's spelling is regular enough that our generator found nothing worth flagging. Our confusable-pair dataset has no match for it, suggesting its spelling stands apart enough that readers rarely confuse it with something else.

Etymologically, the entry records: From dis- + improve. The correct English form is disimprove, spelled D-I-S-I-M-P-R-O-V-E.

Definition

  1. 1
    To make worse.
  2. 2
    To deteriorate.
  3. 3
    To try to make something better but end up making it worse.

Recorded use

Wiktionary example

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

  1. To which may be added this advantage, that the services of churchmen are rewardable upon the church's stock: no need to disimprove the royal banks to pay thanks to bishops.

Etymology

From dis- + improve.

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 "disimprove"?
"disimprove" is spelled D-I-S-I-M-P-R-O-V-E.
What does "disimprove" mean?
As a verb, "disimprove" means: To make worse.
What is the origin of the word "disimprove"?
From dis- + improve. 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