heedlessness

noun

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

The verdict

“heedlessness” 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 state or character of being heedless

Corpus desk

Index EN-heedlessness · heedlessness · English

heedlessness · unranked · 0 variants · 0 confusables

  • FREQ-UNRANKED Unranked
  • LEN-MEGA 12 letters
  • VOW-4 4 vowels
  • CONFUS-0 No pairs
  • VAR-0 0 variants
  • BOOK-THIN "H" 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 heedlessness
PropertyValue
Headwordheedlessness
LanguageEnglish
Part of speechNoun
Letters12
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Long-tail rank of “heedlessness” in English

heedlessnesssits 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

heedlessness is uncommon English outside the top frequency list, classed as anoun. Rarity is why readers land here mid-draft. Gloss: "The state or character of being heedless".

We couldn't generate a plausible misspelling set for heedlessness, a straightforward case of a spelling with little room for common typos. This headword has no recorded confusable partner, since nothing in our dataset looks or sounds close enough to cause mix-ups.

Etymologically, the entry records: From heedless + -ness. The correct English form is heedlessness, spelled H-E-E-D-L-E-S-S-N-E-S-S.

Definition

  1. 1
    The state or character of being heedless

Etymology

From heedless + -ness.

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 "heedlessness"?
"heedlessness" is spelled H-E-E-D-L-E-S-S-N-E-S-S.
What does "heedlessness" mean?
As a noun, "heedlessness" means: The state or character of being heedless
What is the origin of the word "heedlessness"?
From heedless + -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