sinuosity

/ˌsɪnjuˈɒsɪti/

//ˌsɪnjuˈɒsɪti// noun

"sinuosity" is a 9-letter English headword indexed on PlainSpell.

The verdict

“sinuosity” is uncommon English (outside the top frequency list), classed as a noun. The kind of spelling people second-guess.

Unranked
below top-frequency English
9
letters

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - The property of being sinuous.

Corpus desk

Index EN-sinuosity · sinuosity · English

sinuosity · unranked · 0 variants · 0 confusables

  • FREQ-UNRANKED Unranked
  • LEN-LONG 9 letters
  • VOW-5 5 vowels
  • CONFUS-0 No pairs
  • VAR-0 0 variants
  • BOOK-THIN "S" thin
  • PHOTO-UNK Peer pending

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.

Key facts for sinuosity
PropertyValue
Headwordsinuosity
LanguageEnglish
Part of speechNoun
IPA/ˌsɪnjuˈɒsɪti/
Letters9
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Long-tail rank of “sinuosity” in English

sinuositysits beyond the 100,000 most-frequent English words, in the long tail of technical, archaic, or otherwise rare vocabulary where spelling doubt tends to strike hardest.

Beyond rank #100,000. Source: FrequencyWords open word-frequency list.

Rare enough to double-check

sinuosity is uncommon English outside the top frequency list, classed as anoun, transcribed /ˌsɪnjuˈɒsɪti/. Rarity is why readers land here mid-draft. 2 senses are on record.

We couldn't generate a plausible misspelling set for sinuosity, typically a sign the spelling maps closely to how the word sounds. We don't track a confusable pairing for this entry, which usually means its spelling is distinct enough that readers don't reach for a similar-looking word instead.

Etymologically, the entry records: From sinuous + -ity. The correct English form is sinuosity, spelled S-I-N-U-O-S-I-T-Y.

Definition

  1. 1
    The property of being sinuous.
  2. 2
    That which is sinuous.

Recorded use

Wiktionary examples

These source excerpts show how sinuosity appears in context. They illustrate usage; the definition above remains the entry’s reference meaning.

  1. Meander is a Riuer in Lycia, a Prouince of Natolia, or Aſia minor famous for the ſinuoſitie and often turning thereof, […]
  2. She was like a Beardsley Salome, he had said. And indeed she had the narrow eyes and the high cheekbone of that creature, and as nearly the sinuosity as is compatible with human symmetry.

Etymology

From sinuous + -ity.

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). See the methodology for how each field is sourced and updated.

Frequently Asked Questions

How do you spell "sinuosity"?
"sinuosity" is spelled S-I-N-U-O-S-I-T-Y. The IPA pronunciation is /ˌsɪnjuˈɒsɪti/.
What does "sinuosity" mean?
As a noun, "sinuosity" means: The property of being sinuous.
How do you pronounce "sinuosity"?
The IPA (International Phonetic Alphabet) transcription for "sinuosity" is /ˌsɪnjuˈɒsɪti/. Click the speaker icon on the pronunciation badge above to hear it spoken aloud where audio is available.
What is the origin of the word "sinuosity"?
From sinuous + -ity. See the full etymology section above for more details.
Is PlainSpell free to use?
Yes, PlainSpell is a completely free word reference. You can look up definitions, pronunciations, confusable pairs, homophones, and spelling corrections across 5 languages without any sign-up or subscription.

Source: Wiktionary (via kaikki.org) Structured Wiktionary extract

Source: FrequencyWords open word-frequency list