retroviral

adj

By · According to Wiktionary data (CC BY-SA) ·

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

The verdict

“retroviral” is uncommon English (frequency #68,587 among 3,094 “R” headwords), classed as an adjective. The kind of spelling people second-guess.

#68,587
frequency rank, English
3,094
“R” headwords

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - Of or pertaining to a retrovirus

Corpus desk

Index EN-retroviral · retroviral · English

retroviral · rank #68,587 · 0 variants · 0 confusables

  • FREQ-RARE #68,587
  • LEN-MEGA 10 letters
  • VOW-4 4 vowels
  • CONFUS-0 No pairs
  • VAR-0 0 variants
  • BOOK-MID 3,094
  • PHOTO-FINISH Riek

Nearest frequency peer: Riek (+3 rank slots)

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.

Long-tail ranks near “retroviral”

Sparse band: bars invert rank so rarer forms read shorter

corpus weight

What this shows Long-tail view: where “retroviral” sits against similarly uncommon English ranks.

Source FrequencyWords open word-frequency list As of September 3, 2026
Key facts for retroviral
PropertyValue
Headwordretroviral
LanguageEnglish
Part of speechAdjective
Letters10
Frequency rank#68,587
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Long-tail rank of “retroviral” in English

Every-word frequency runs from the handful of words we use constantly (left) to the long tail used once in a blue moon (right).retroviralfalls in this rarity band:

#1#100#1K#10K#100K
← used constantlyrarely used →

Scale is logarithmic (each tick is 10× rarer). Rare peers in the same band: “Riek” (#68,590), “ringmaster” (#68,591), “repackage” (#68,582). Among 3,094 “R” headwords, “retroviral” is #68,587. Source: FrequencyWords open word-frequency list.

Rare enough to double-check

retroviral is uncommon English at frequency #68,587 among 3,094 “R” headwords, classed as anadjective. Rarity is why readers land here mid-draft. Gloss: "Of or pertaining to a retrovirus".

No generated misspelling entries exist for retroviral in our index, typically a sign the spelling maps closely to how the word sounds. We don't track a confusable pairing for this entry, since its spelling is unusual enough that it doesn't cluster with a lookalike.

Etymologically, the entry records: From retro- + viral. The correct English form is retroviral, spelled R-E-T-R-O-V-I-R-A-L.

Definition

  1. 1
    Of or pertaining to a retrovirus

Etymology

From retro- + viral.

This word in other languages

retroviral(Español)

Definitions, pronunciation, and etymology for this entry are drawn from Wiktionary via the kaikki.org structured extract (CC BY-SA); frequency ordering uses the FrequencyWords open word-frequency list (2018 English corpus, MIT). See the methodology for how each field is sourced and updated.

Frequently Asked Questions

How do you spell "retroviral"?
"retroviral" is spelled R-E-T-R-O-V-I-R-A-L.
What does "retroviral" mean?
As an adjective, "retroviral" means: Of or pertaining to a retrovirus
What is the origin of the word "retroviral"?
From retro- + viral. 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.

Similar English words by spelling shape

Same letter count and similar misspelling depth for "retroviral", not the corpus desk frequency band.

Same letter count

Frequency-ranked English headwords with 10 letters (nearest by frequency rank).

ringmaster#68,591ruminating#68,604saleswoman#68,608puritanism#68,559

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

Source: FrequencyWords open word-frequency list