retrogression

noun

"retrogression" is a 13-letter English headword indexed on PlainSpell.

The verdict

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

Unranked
below top-frequency English
13
letters

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - A deterioration or decline to a previous state.

Corpus desk

Index EN-retrogression · retrogression · English

retrogression · unranked · 0 variants · 0 confusables

  • FREQ-UNRANKED Unranked
  • LEN-MEGA 13 letters
  • VOW-5 5 vowels
  • CONFUS-0 No pairs
  • VAR-0 0 variants
  • BOOK-THIN "R" 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 retrogression
PropertyValue
Headwordretrogression
LanguageEnglish
Part of speechNoun
Letters13
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Long-tail rank of “retrogression” in English

retrogressionsits 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

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

No generated misspelling entries exist for retrogression in our index, suggesting the orthography follows predictable English patterns. No confusable counterpart is on file for this word, which usually means its spelling is distinct enough that readers don't reach for a similar-looking word instead.

No borrowing history is documented for this entry, so its spelling is best read as a straightforward mapping from sound to letter. The correct English form is retrogression, spelled R-E-T-R-O-G-R-E-S-S-I-O-N.

Definition

  1. 1
    A deterioration or decline to a previous state.
  2. 2
    A return to a less complex condition.

Recorded use

Wiktionary examples

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

  1. History and experience, the enshriners of the past, and investigation, the discoverer of the present and preparer for the future, will prevent retrogression.
  2. Suns spring into being, and then their height of power being reached, the process of retrogression begins, and after aeons they become dead masses of matter, awaiting another impulse which starts again their inner energies into activity and a new solar life cycle is begun.

Synonyms

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 "retrogression"?
"retrogression" is spelled R-E-T-R-O-G-R-E-S-S-I-O-N.
What does "retrogression" mean?
As a noun, "retrogression" means: A deterioration or decline to a previous state.
What language does "retrogression" come from?
"retrogression" is a English word. You can look up definitions, pronunciations, and spelling data for this and other words across English, Spanish, Portuguese, French, and German on PlainSpell.
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