dead tired

adj

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

The verdict

“dead tired” is uncommon English (outside the top frequency list), classed as an adjective. The kind of spelling people second-guess.

Unranked
below top-frequency English
10
letters

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - Very tired; completely exhausted.

Corpus desk

Index EN-dead-tired · dead tired · English

dead tired · unranked · 0 variants · 0 confusables

  • FREQ-UNRANKED Unranked
  • LEN-MEGA 10 letters
  • VOW-4 4 vowels
  • CONFUS-0 No pairs
  • VAR-0 0 variants
  • BOOK-THIN "D" 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 dead tired
PropertyValue
Headworddead tired
LanguageEnglish
Part of speechAdjective
Letters10
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Long-tail rank of “dead tired” in English

dead tiredsits 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

dead tired is uncommon English outside the top frequency list, classed as anadjective. Rarity is why readers land here mid-draft. Gloss: "Very tired; completely exhausted.".

No misspelling variants are generated for dead tired in our index, suggesting the orthography follows predictable English patterns. Our dataset records no confusable match here, since nothing in our dataset looks or sounds close enough to cause mix-ups.

Etymologically, the entry records: As if one were dead: utterly without energy. Compare bone-idle, knackered. The correct English form is dead tired, spelled D-E-A-D- -T-I-R-E-D.

Definition

  1. 1
    Very tired; completely exhausted.

Etymology

As if one were dead: utterly without energy. Compare bone-idle, knackered.

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 "dead tired"?
"dead tired" is spelled D-E-A-D- -T-I-R-E-D.
What does "dead tired" mean?
As an adjective, "dead tired" means: Very tired; completely exhausted.
What is the origin of the word "dead tired"?
As if one were dead: utterly without energy. Compare bone-idle, knackered. 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