sinuous

/ˈsɪn.ju.əs/

//ˈsɪn.ju.əs// adj

"sinuous" is a 7-letter English headword indexed on PlainSpell.

The verdict

“sinuous” is uncommon English (frequency #51,994 among 6,566 “S” headwords), classed as an adjective. The kind of spelling people second-guess.

#51,994
frequency rank, English
6,566
“S” headwords

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - Having curves in alternate directions; meandering.

Corpus desk

Index EN-sinuous · sinuous · English

sinuous · rank #51,994 · 0 variants · 0 confusables

  • FREQ-RARE #51,994
  • LEN-LONG 7 letters
  • VOW-4 4 vowels
  • CONFUS-0 No pairs
  • VAR-0 0 variants
  • BOOK-DENSE 6,566
  • PHOTO-FINISH Shulman

Nearest frequency peer: Shulman (-2 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 “sinuous”

Sparse band: bars invert rank so rarer forms read shorter

corpus weight

What this shows Long-tail view: where “sinuous” sits against similarly uncommon English ranks.

Source FrequencyWords open word-frequency list As of September 3, 2026
Key facts for sinuous
PropertyValue
Headwordsinuous
LanguageEnglish
Part of speechAdjective
IPA/ˈsɪn.ju.əs/
Letters7
Frequency rank#51,994
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Long-tail rank of “sinuous” in English

This scale runs from the tiny cluster of words that carry ordinary speech (left) to the long tail of words almost nobody reaches for (right).sinuousfalls in this rarity band:

#1#100#1K#10K#100K
← used constantlyrarely used →

Ticks step logarithmically, so each one marks a roughly tenfold drop in how often the word turns up. Rare peers in the same band: “Shulman” (#51,992), “sirloin” (#51,996), “shtick” (#51,991). Among 6,566 “S” headwords, “sinuous” is #51,994. Source: FrequencyWords open word-frequency list.

Rare enough to double-check

sinuous is uncommon English at frequency #51,994 among 6,566 “S” headwords, classed as anadjective, transcribed /ˈsɪn.ju.əs/. Rarity is why readers land here mid-draft. 3 senses are on record.

sinuous has no tracked misspelling variants, typically a sign the spelling maps closely to how the word sounds. Our dataset records no confusable match here, since its spelling is unusual enough that it doesn't cluster with a lookalike.

Etymologically, the entry records: Learned borrowing from Latin sinuōsus. The correct English form is sinuous, spelled S-I-N-U-O-U-S.

Definition

  1. 1
    Having curves in alternate directions; meandering.
  2. 2
    Moving gracefully and in a supple manner.
  3. 3
    Morally crooked; shifty.

Recorded use

Wiktionary examples

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

  1. We followed every bend of the sinuous river.
  2. [W]hen a transverse, or, within certain limits, an oblique impulse, impinges laterally upon a continuous mountain range, two movements of vibration are communicated; the one, a wave transmitted along and in the line of the axis, the other a transverse wave, which causes the axial line to sway laterally, and transmit a quam prox. horizontal transverse wave…

Etymology

Learned borrowing from Latin sinuōsus.

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

How do you spell "sinuous"?
"sinuous" is spelled S-I-N-U-O-U-S. The IPA pronunciation is /ˈsɪn.ju.əs/.
What does "sinuous" mean?
As an adjective, "sinuous" means: Having curves in alternate directions; meandering.
How do you pronounce "sinuous"?
The IPA (International Phonetic Alphabet) transcription for "sinuous" is /ˈsɪn.ju.əs/. 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 "sinuous"?
Learned borrowing from Latin sinuōsus. 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.

Similar English words by spelling shape

Same letter count and similar misspelling depth for "sinuous", not the corpus desk frequency band.

Same letter count

Frequency-ranked English headwords with 7 letters (nearest by frequency rank).

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

Source: FrequencyWords open word-frequency list