reasonableness
/ˈɹiː.zə.nə.bəl.nəs/
"reasonableness" is a 14-letter English headword indexed on PlainSpell.
The verdict
“reasonableness” is uncommon English (frequency #51,348 among 21,470 “R” headwords), classed as a noun. The kind of spelling people second-guess.
- #51,348
- frequency rank, English
- 21,470
- “R” headwords
According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - The state or characteristic of being reasonable.
| Property | Value |
|---|---|
| Headword | reasonableness |
| Language | English |
| Part of speech | Noun |
| IPA | /ˈɹiː.zə.nə.bəl.nəs/ |
| Letters | 14 |
| Frequency rank | #51,348 |
| Misspellings tracked | 0 |
| Confusable pairs | 0 |
| Source | Wiktionary (kaikki.org) |
Where “reasonableness” sits in English frequency
Rare enough to double-check
reasonableness is uncommon English at frequency #51,348 among 21,470 “R” headwords, classed as anoun, transcribed /ˈɹiː.zə.nə.bəl.nəs/. Rarity is why readers land here mid-draft. 2 senses are on record.
No generated misspelling entries exist for reasonableness in our index, typically a sign the spelling maps closely to how the word sounds. It is not paired with a close-neighbour confusable in our dataset, suggesting its spelling stands apart enough that readers rarely confuse it with something else.
Etymologically, the entry records: From Middle English resonabilnes, resonabilnesse, resonablenesse, equivalent to reasonable + -ness. The correct English form is reasonableness, spelled R-E-A-S-O-N-A-B-L-E-N-E-S-S.
Definition
- 1The state or characteristic of being reasonable.
- 2A reasonable action or behaviour.
Etymology
From Middle English resonabilnes, resonabilnesse, resonablenesse, equivalent to reasonable + -ness.
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.
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Using “reasonableness”
The practical upshot for anyone who landed here from a spell-check.
- The one correct English spelling is R-E-A-S-O-N-A-B-L-E-N-E-S-S - every other letter order is a misspelling in standard orthography.
- Say it as /ˈɹiː.zə.nə.bəl.nəs/ (IPA); tap the speaker on the pronunciation badge to hear it where audio exists.
- Browse more English words and confusable pairs in the same reference. English words
Other uncommon English words near this 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.