risperidone
/ɹɪˈspɛ.ɹɪ.dəʊn/
"risperidone" is a 11-letter English headword indexed on PlainSpell.
The verdict
“risperidone” is uncommon English (frequency #98,656 among 21,470 “R” headwords), classed as a noun. The kind of spelling people second-guess.
- #98,656
- frequency rank, English
- 21,470
- “R” headwords
According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - A drug that is a combined serotonin and dopamine receptor antagonist, used in the treatment of psychotic disorders.
Corpus desk
Index EN-risperidone · risperidone · English
risperidone · rank #98,656 · 0 variants · 0 confusables
- FREQ-RARE #98,656
- LEN-MEGA 11 letters
- VOW-5 5 vowels
- CONFUS-0 No pairs
- VAR-0 0 variants
- BOOK-DENSE 21,470
- PHOTO-FINISH Rigsby
Nearest frequency peer: Rigsby (-1 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.
Frequency neighbourhood for “risperidone”
Lower corpus rank = more everyday usage (inverted bar length for readability)
- retinoblast…
retinoblastoma
1,352 corpus weight
- rheological
rheological
1,350 corpus weight
- Rigsby
Rigsby
1,346 corpus weight
- risperidone
risperidone
1,345 corpus weight
- Ritson
Ritson
1,343 corpus weight
- Rockall
Rockall
1,340 corpus weight
What this shows Bars show where “risperidone” sits against the nearest ranked English headwords in the FrequencyWords band, not a reprint of letter-browse containment.
| Property | Value |
|---|---|
| Headword | risperidone |
| Language | English |
| Part of speech | Noun |
| IPA | /ɹɪˈspɛ.ɹɪ.dəʊn/ |
| Letters | 11 |
| Frequency rank | #98,656 |
| Misspellings tracked | 0 |
| Confusable pairs | 0 |
| Source | Wiktionary (kaikki.org) |
Where “risperidone” sits in English frequency
Rare enough to double-check
risperidone is uncommon English at frequency #98,656 among 21,470 “R” headwords, classed as anoun, transcribed /ɹɪˈspɛ.ɹɪ.dəʊn/. Rarity is why readers land here mid-draft. Gloss: "A drug that is a combined serotonin and dopamine receptor antagonist, used in the treatment of psychotic disorders.".
No generated misspelling entries exist for risperidone in our index, a straightforward case of a spelling with little room for common typos. We don't track a confusable pairing for this entry, a sign it's visually distinctive enough not to be mixed up with another word.
Etymologically, the entry records: From (fluo)r- + (benz)is(oxazole) + (pi)perid(inyl) + -one. The correct English form is risperidone, spelled R-I-S-P-E-R-I-D-O-N-E.
Definition
- 1A drug that is a combined serotonin and dopamine receptor antagonist, used in the treatment of psychotic disorders.
Etymology
From (fluo)r- + (benz)is(oxazole) + (pi)perid(inyl) + -one.
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.
PlainSpell is rendered directly from structured Wiktionary extracts and open word-frequency lists, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of May 6, 2026. Primary sources: Wiktionary (via kaikki.org) and FrequencyWords.
Frequently Asked Questions
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Similar English words by spelling shape
Same letter count and similar misspelling depth for "risperidone", not the corpus desk frequency band.
Same letter count
Frequency-ranked English headwords with 11 letters (nearest by frequency rank).
Data Source
Wiktionary (via kaikki.org), licensed under CC BY-SA & GFDL. Word ordering uses an open word-frequency list; misspelling variants are generated by edit-distance from the correct headword.