reasonous
"reasonous" is a 9-letter English headword indexed on PlainSpell.
The verdict
“reasonous” is outside the top-ranked English vocabulary, used as an adjective - the kind of word writers most often double-check.
- Unranked
- below top-frequency English
- 9
- letters
According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - Synonym of reasonable.
| Property | Value |
|---|---|
| Headword | reasonous |
| Language | English |
| Part of speech | Adjective |
| Letters | 9 |
| Misspellings tracked | 0 |
| Confusable pairs | 0 |
| Source | Wiktionary (kaikki.org) |
Where “reasonous” sits in English frequency
Spelling & Dictionary Insight
The English entry for reasonous is 9 letters long, classified as an adjective. It sits outside the most-frequent rank tiers, which is often why uncommon words generate more spelling variants per reader. The dominant gloss from Wiktionary reads: "Synonym of reasonable.".
We couldn't generate a plausible misspelling set for reasonous, since its letter sequence doesn't invite the usual edit-distance slips. No confusable counterpart is on file for this word, since nothing in our dataset looks or sounds close enough to cause mix-ups.
Etymologically, the entry records: From reason + -ous. The correct English form is reasonous, spelled R-E-A-S-O-N-O-U-S.
Definition
- 1Synonym of reasonable.
Etymology
From reason + -ous.
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 "reasonous"?
What does "reasonous" mean?
What is the origin of the word "reasonous"?
Is PlainSpell free to use?
Using “reasonous”
The practical upshot for anyone who landed here from a spell-check.
- The one correct English spelling is R-E-A-S-O-N-O-U-S - every other letter order is a misspelling in standard orthography.
- Browse more English words and confusable pairs in the same reference. English words
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.