undeadly

adj

"undeadly" is a 8-letter English headword indexed on PlainSpell.

The verdict

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

Unranked
below top-frequency English
8
letters

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - Not subject to death; immortal.

Corpus desk

Index EN-undeadly · undeadly · English

undeadly · unranked · 0 variants · 0 confusables

  • FREQ-UNRANKED Unranked
  • LEN-LONG 8 letters
  • VOW-4 4 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 undeadly
PropertyValue
Headwordundeadly
LanguageEnglish
Part of speechAdjective
Letters8
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Long-tail rank of “undeadly” in English

undeadlyfalls 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

undeadly is uncommon English outside the top frequency list, classed as anadjective. Rarity is why readers land here mid-draft. 3 senses are on record.

No generated misspelling entries exist for undeadly in our index, typically a sign the spelling maps closely to how the word sounds. No close-neighbour confusable shows up for this headword in our dataset, which typically means the spelling is too distinctive to be mistaken for another word.

Etymologically, the entry records: From Middle English undedly, undeedly, undedlich, from Old English undēadlīc (“immortal, for all eternity”), equivalent to undead + -ly. The correct English form is undeadly, spelled U-N-D-E-A-D-L-Y.

Definition

  1. 1
    Not subject to death; immortal.
  2. 2
    Unable to be killed, quenched, or terminated; eternal; everlasting.
  3. 3
    Of or pertaining to the undead.

Recorded use

Wiktionary examples

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

  1. "The soul also hath her death, namely, when it lacketh and is destitute of the eternal and godly life, which truly and justly is called the life of the soul: but undeadly or immortal is it called, because it never ceaseth to live, how miserable soever the life of it be. [...]"
  2. He aye was and aye shall be, undeadly and everlasting.

Etymology

From Middle English undedly, undeedly, undedlich, from Old English undēadlīc (“immortal, for all eternity”), equivalent to undead + -ly.

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 "undeadly"?
"undeadly" is spelled U-N-D-E-A-D-L-Y.
What does "undeadly" mean?
As an adjective, "undeadly" means: Not subject to death; immortal.
What is the origin of the word "undeadly"?
From Middle English undedly, undeedly, undedlich, from Old English undēadlīc (“immortal, for all eternity”), equivalent to undead + -ly. 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