undeadliness

noun

"undeadliness" is a 12-letter English headword indexed on PlainSpell.

The verdict

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

Unranked
below top-frequency English
12
letters

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - The condition of not being susceptible to death; immortality.

Corpus desk

Index EN-undeadliness · undeadliness · English

undeadliness · unranked · 0 variants · 0 confusables

  • FREQ-UNRANKED Unranked
  • LEN-MEGA 12 letters
  • VOW-5 5 vowels
  • CONFUS-0 No pairs
  • VAR-0 0 variants
  • BOOK-THIN "U" 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 undeadliness
PropertyValue
Headwordundeadliness
LanguageEnglish
Part of speechNoun
Letters12
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Long-tail rank of “undeadliness” in English

undeadlinessfalls 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

undeadliness is uncommon English outside the top frequency list, classed as anoun. Rarity is why readers land here mid-draft. Gloss: "The condition of not being susceptible to death; immortality.".

No generated misspelling entries exist for undeadliness in our index, which points to an orthography that plays by predictable English rules. 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: Calque of Middle English undedlynesse (or, in some cases, a continuation rather than a calque), from Old English undēadlīcnes (“immortality”); equivalent to undeadly + -ness; compare German Unsterblichkeit, a similarly formed compound. The correct English form is undeadliness, spelled U-N-D-E-A-D-L-I-N-E-S-S.

Definition

  1. 1
    The condition of not being susceptible to death; immortality.

Recorded use

Wiktionary examples

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

  1. Although the holy fathers, who were before us, very certainly knew about that which thou formerly askedst; that is, about the undeadliness of men's souls, which was very clear in this that they naught doubted, […]
  2. "If a man might die, and have done with it all! But to meet God! And 'tis no sweven,¹ ne fallacy, this dread undeadliness² — it is real." 1. Dream 2. Immortality.

Etymology

Calque of Middle English undedlynesse (or, in some cases, a continuation rather than a calque), from Old English undēadlīcnes (“immortality”); equivalent to undeadly + -ness; compare German Unsterblichkeit, a similarly formed compound.

Synonyms

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 "undeadliness"?
"undeadliness" is spelled U-N-D-E-A-D-L-I-N-E-S-S.
What does "undeadliness" mean?
As a noun, "undeadliness" means: The condition of not being susceptible to death; immortality.
What is the origin of the word "undeadliness"?
Calque of Middle English undedlynesse (or, in some cases, a continuation rather than a calque), from Old English undēadlīcnes (“immortality”); equivalent to undeadly + -ness; compare German Unsterblichkeit, a similarly formed compound. See the full etymology section above for more details.
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Source: Wiktionary (via kaikki.org) Structured Wiktionary extract

Source: FrequencyWords open word-frequency list