diarrheal
"diarrheal" is a 9-letter English headword indexed on PlainSpell.
The verdict
“diarrheal” is uncommon English (frequency #98,025 among 3,470 “D” headwords), classed as an adjective. The kind of spelling people second-guess.
- #98,025
- frequency rank, English
- 3,470
- “D” headwords
According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - That causes, or is associated with diarrhea.
Corpus desk
Index EN-diarrheal · diarrheal · English
diarrheal · rank #98,025 · 0 variants · 0 confusables
- FREQ-RARE #98,025
- LEN-LONG 9 letters
- VOW-4 4 vowels
- CONFUS-0 No pairs
- VAR-0 0 variants
- BOOK-MID 3,470
- PHOTO-FINISH diaphanous
Nearest frequency peer: diaphanous (-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.
Long-tail ranks near “diarrheal”
Sparse band: bars invert rank so rarer forms read shorter
- diable
diable
1,979 corpus weight
- diacetyl
diacetyl
1,978 corpus weight
- diaphanous
diaphanous
1,977 corpus weight
- diarrheal
diarrheal
1,976 corpus weight
- diclofenac
diclofenac
1,975 corpus weight
- difficultly
difficultly
1,974 corpus weight
What this shows Long-tail view: where “diarrheal” sits against similarly uncommon English ranks.
| Property | Value |
|---|---|
| Headword | diarrheal |
| Language | English |
| Part of speech | Adjective |
| Letters | 9 |
| Frequency rank | #98,025 |
| Misspellings tracked | 0 |
| Confusable pairs | 0 |
| Source | Wiktionary (kaikki.org) |
Long-tail rank of “diarrheal” in English
Rare enough to double-check
diarrheal is uncommon English at frequency #98,025 among 3,470 “D” headwords, classed as anadjective. Rarity is why readers land here mid-draft. Gloss: "That causes, or is associated with diarrhea.".
diarrheal doesn't appear in our generated misspelling index, a straightforward case of a spelling with little room for common typos. We don't track a confusable pairing for this entry, since no other headword is close enough in sound or shape to pair with it.
Etymologically, the entry records: From diarrhea + -al. The correct English form is diarrheal, spelled D-I-A-R-R-H-E-A-L.
Definition
- 1That causes, or is associated with diarrhea.
Recorded use
Wiktionary exampleThese source excerpts show how diarrheal appears in context. They illustrate usage; the definition above remains the entry’s reference meaning.
The river systems of India and Bangladesh are rife with diarrhoeal disease.
Etymology
From diarrhea + -al.
Synonyms
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); 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
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Similar English words by spelling shape
Same letter count and similar misspelling depth for "diarrheal", not the corpus desk frequency band.
Same letter count
Frequency-ranked English headwords with 9 letters (nearest by frequency rank).