obliquity

/əˈblɪkwɪti/

//əˈblɪkwɪti// noun

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

The verdict

“obliquity” 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 quality of being oblique in direction, deviating from the horizontal or vertical; or the angle created by such a deviation.

Corpus desk

Index EN-obliquity · obliquity · English

obliquity · 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 "O" 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 obliquity
PropertyValue
Headwordobliquity
LanguageEnglish
Part of speechNoun
IPA/əˈblɪkwɪti/
Letters9
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Long-tail rank of “obliquity” in English

obliquityfalls outside the top-100,000 ranked English words, the long-tail zone of technical, archaic, or low-frequency vocabulary, exactly where readers second-guess spellings most.

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

Rare enough to double-check

obliquity is uncommon English outside the top frequency list, classed as anoun, transcribed /əˈblɪkwɪti/. Rarity is why readers land here mid-draft. 4 senses are on record.

obliquity has no tracked misspelling variants, a sign its spelling follows regular English conventions. This entry stands alone in our confusable dataset, since nothing in our dataset looks or sounds close enough to cause mix-ups.

Etymologically, the entry records: From Middle French obliquité, from Latin oblīquitās, from oblīquus (“oblique”). Corresponding to oblique + -ity. The correct English form is obliquity, spelled O-B-L-I-Q-U-I-T-Y.

Definition

  1. 1
    The quality of being oblique in direction, deviating from the horizontal or vertical; or the angle created by such a deviation.
  2. 2
    Axial tilt.
  3. 3
    Mental or moral deviation or perversity; immorality.
  4. 4
    The quality of being obscure, oftentimes willfully, sometimes as an exercise in euphemism.

Recorded use

Wiktionary examples

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

  1. The Planet Earth, so stedfast though she seem, / Insensibly three different Motions move? / Which else to several Sphears thou must ascribe, / Mov'd contrarie with thwart obliquities
  2. Screwed at its axis against the side, a swinging lamp slightly oscillates in Jonah’s room; and the ship, heeling over towards the wharf with the weight of the last bales received, the lamp, flame and all, though in slight motion, still maintains a permanent obliquity with reference to the room; though, in truth, infallibly straight itself, it but made obv…

Etymology

From Middle French obliquité, from Latin oblīquitās, from oblīquus (“oblique”). Corresponding to oblique + -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 "obliquity"?
"obliquity" is spelled O-B-L-I-Q-U-I-T-Y. The IPA pronunciation is /əˈblɪkwɪti/.
What does "obliquity" mean?
As a noun, "obliquity" means: The quality of being oblique in direction, deviating from the horizontal or vertical; or the angle created by such a deviation.
How do you pronounce "obliquity"?
The IPA (International Phonetic Alphabet) transcription for "obliquity" is /əˈblɪkwɪti/. 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 "obliquity"?
From Middle French obliquité, from Latin oblīquitās, from oblīquus (“oblique”). Corresponding to oblique + -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