rationality
/ˌraʃəˈnalɪti/noun
rationality is spelled R-A-T-I-O-N-A-L-I-T-Y: 11 letters and 5 syllables. It appears 1.3 times per million words in written English, the 25,367th most frequent word form (wordfreq, 2021 data). As a noun, rationality means “The quality or state of being rational; due exercise of reason; reasonableness” (English Wiktionary, September 2026). The plural of rationality is rationalities.
How many letters and syllables are in rationality?
| Letters | 11: R-A-T-I-O-N-A-L-I-T-Y |
|---|---|
| Syllables | 5 (from its American pronunciation) |
| In writing | 1.3 times per million words; the 25,367th most frequent word form |
| Wrong spellings searched | none measured in search |
Sources: letters and syllables from the English Wiktionary's hyphenation or pronunciation and the CMU Pronouncing Dictionary; written frequency: wordfreq 3.1 (a 2021 snapshot of Wikipedia, subtitles, news, books, web text and social media).
How common is rationality?
Rationality appears 1.3 times per million words in written English, the 25,367th most frequent word form in the list.
Source: written frequency: wordfreq 3.1 (a 2021 snapshot of Wikipedia, subtitles, news, books, web text and social media).
How do you pronounce rationality?
- /ˌraʃəˈnalɪti/
Rationality has 5 syllables (counted from its American pronunciation in the CMU Pronouncing Dictionary).
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract). Recordings: LL-Q1860_(eng)-Vealhurl-rationality.wav, Wikimedia Commons (author and licence on each file's page).
Forms of rationality
- rationalities plural
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
What does rationality mean?
The meanings the English Wiktionary records, quoted as written there (source below).
noun
- 1
The quality or state of being rational; due exercise of reason; reasonableness.
His sudden loss of rationality was brought on by excess drink.
- 2
Objective consideration.
Such a discussion deserves rationality, not emotional gut reactions.
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
Rationality in Spanish, French, German and Portuguese
In the sense quality or state of being rational:
| Language | Words |
|---|---|
| French | rationalité |
| Portuguese | racionalidade |
| Spanish | racionalidad |
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract). Translations are Wiktionary's, by sense; a linked word has its own PlainSpell page.
Where does rationality come from?
From rational + -ity, from French rationalité, from Late Latin rationalitas (“rationality, reasonableness”), from Latin rationalis (“reasonable”).
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).