sleep deprivation

noun

"sleep-deprivation" is a 16-letter English headword indexed on PlainSpell.

The verdict

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

Unranked
below top-frequency English
17
letters

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - The condition of being kept awake and not getting enough sleep (as forcibly by someone else, or by a disorder), to the point of noticeably lower alertness.

Corpus desk

Index EN-sleep-deprivation · sleep deprivation · English

sleep deprivation · unranked · 0 variants · 0 confusables

  • FREQ-UNRANKED Unranked
  • LEN-MEGA 17 letters
  • VOW-7 7 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 sleep deprivation
PropertyValue
Headwordsleep deprivation
LanguageEnglish
Part of speechNoun
Letters17
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Long-tail rank of “sleep deprivation” in English

sleep deprivationsits 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

sleep deprivation is uncommon English outside the top frequency list, classed as anoun. Rarity is why readers land here mid-draft. Gloss: "The condition of being kept awake and not getting enough sleep (as forcibly by someone else, or by a disorder), to the point of noticeably lower alertness.".

sleep deprivation has no tracked misspelling variants, since its letter pattern doesn't lend itself to common typo substitutions. We don't track a confusable pairing for this entry, since nothing in our dataset looks or sounds close enough to cause mix-ups.

This entry's etymology isn't recorded, so its spelling pattern is best understood through pronunciation rather than a traceable origin. The correct English form is sleep deprivation, spelled S-L-E-E-P- -D-E-P-R-I-V-A-T-I-O-N.

Definition

  1. 1
    The condition of being kept awake and not getting enough sleep (as forcibly by someone else, or by a disorder), to the point of noticeably lower alertness.

Recorded use

Wiktionary examples

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

  1. Sleep deprivation can lead to fatal vehicular accidents.
  2. Growing evidence has accumulated over the last two decades and revealed that a number of sleep traits in humans are heritable, such as timing of sleep, total daily sleep requirement, response to sleep deprivation, and various EEG measurements/patterns.

Antonyms

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 "sleep deprivation"?
"sleep deprivation" is spelled S-L-E-E-P- -D-E-P-R-I-V-A-T-I-O-N.
What does "sleep deprivation" mean?
As a noun, "sleep deprivation" means: The condition of being kept awake and not getting enough sleep (as forcibly by someone else, or by a disorder), to the point of noticeably lower alertness.
What language does "sleep deprivation" come from?
"sleep deprivation" is a English word. You can look up definitions, pronunciations, and spelling data for this and other words across English, Spanish, Portuguese, French, and German on PlainSpell.
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