unthankfulness

noun

"unthankfulness" is a 14-letter English headword indexed on PlainSpell.

The verdict

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

Unranked
below top-frequency English
14
letters

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - The condition or state of being unthankful; ingratitude.

Corpus desk

Index EN-unthankfulness · unthankfulness · English

unthankfulness · unranked · 0 variants · 0 confusables

  • FREQ-UNRANKED Unranked
  • LEN-MEGA 14 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 unthankfulness
PropertyValue
Headwordunthankfulness
LanguageEnglish
Part of speechNoun
Letters14
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Long-tail rank of “unthankfulness” in English

unthankfulnesssits 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

unthankfulness is uncommon English outside the top frequency list, classed as anoun. Rarity is why readers land here mid-draft. Gloss: "The condition or state of being unthankful; ingratitude.".

unthankfulness doesn't appear in our generated misspelling index, which points to an orthography that plays by predictable English rules. No close-neighbour confusable shows up for this headword in our dataset, since its spelling is unusual enough that it doesn't cluster with a lookalike.

Etymologically, the entry records: From Middle English unthankfullnes, equivalent to unthankful + -ness. The correct English form is unthankfulness, spelled U-N-T-H-A-N-K-F-U-L-N-E-S-S.

Definition

  1. 1
    The condition or state of being unthankful; ingratitude.

Recorded use

Wiktionary example

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

  1. This lokyng about of Jeſus, was a geſture of hym that courteouſly requyred a confeſſion of the benefite receiued. He woulde not vtter her by name, leſte he ſhoulde haue ſemed to haue hit her in the teethe, wyth the good turne he dyd her. The woman, of a womanlye ſhamefaſteneſſe, and not of any vnthankfullneſſe, helde her peace.

Etymology

From Middle English unthankfullnes, equivalent to unthankful + -ness.

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 "unthankfulness"?
"unthankfulness" is spelled U-N-T-H-A-N-K-F-U-L-N-E-S-S.
What does "unthankfulness" mean?
As a noun, "unthankfulness" means: The condition or state of being unthankful; ingratitude.
What is the origin of the word "unthankfulness"?
From Middle English unthankfullnes, equivalent to unthankful + -ness. 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