relentlessness

/ɹɪˈlɛntləsnəs/

//ɹɪˈlɛntləsnəs// noun

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

The verdict

“relentlessness” 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 of being relentless.

Corpus desk

Index EN-relentlessness · relentlessness · English

relentlessness · 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 "R" 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 relentlessness
PropertyValue
Headwordrelentlessness
LanguageEnglish
Part of speechNoun
IPA/ɹɪˈlɛntləsnəs/
Letters14
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Long-tail rank of “relentlessness” in English

relentlessnesssits 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

relentlessness is uncommon English outside the top frequency list, classed as anoun, transcribed /ɹɪˈlɛntləsnəs/. Rarity is why readers land here mid-draft. Gloss: "The condition of being relentless.".

Our edit-distance generator produced no likely misspellings for relentlessness, since its letter pattern doesn't lend itself to common typo substitutions. Our dataset records no confusable match here, which typically means the spelling is too distinctive to be mistaken for another word.

Etymologically, the entry records: From relentless + -ness. The correct English form is relentlessness, spelled R-E-L-E-N-T-L-E-S-S-N-E-S-S.

Definition

  1. 1
    The condition of being relentless.

Recorded use

Wiktionary example

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

  1. The more I learned about transkids, the more I grilled you, every day. I'm ashamed of my relentlessness, but I had to know. “Why do you want to be a boy?” “I don't know.”

Etymology

From relentless + -ness.

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 "relentlessness"?
"relentlessness" is spelled R-E-L-E-N-T-L-E-S-S-N-E-S-S. The IPA pronunciation is /ɹɪˈlɛntləsnəs/.
What does "relentlessness" mean?
As a noun, "relentlessness" means: The condition of being relentless.
How do you pronounce "relentlessness"?
The IPA (International Phonetic Alphabet) transcription for "relentlessness" is /ɹɪˈlɛntləsnəs/. Click the speaker icon on the pronunciation badge above to hear it spoken aloud where audio is available.
What is the origin of the word "relentlessness"?
From relentless + -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