untiring

adj

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

The verdict

“untiring” is uncommon English (frequency #85,898 among 1,433 “U” headwords), classed as an adjective. The kind of spelling people second-guess.

#85,898
frequency rank, English
1,433
“U” headwords

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - Not able to be tired; inexhaustible.

Corpus desk

Index EN-untiring · untiring · English

untiring · rank #85,898 · 0 variants · 0 confusables

  • FREQ-RARE #85,898
  • LEN-LONG 8 letters
  • VOW-3 3 vowels
  • CONFUS-0 No pairs
  • VAR-0 0 variants
  • BOOK-MID 1,433
  • PHOTO-FINISH unspecific

Nearest frequency peer: unspecific (-1 rank slots)

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.

Long-tail ranks near “untiring”

Sparse band: bars invert rank so rarer forms read shorter

corpus weight

What this shows Long-tail view: where “untiring” sits against similarly uncommon English ranks.

Source FrequencyWords open word-frequency list As of September 3, 2026
Key facts for untiring
PropertyValue
Headworduntiring
LanguageEnglish
Part of speechAdjective
Letters8
Frequency rank#85,898
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Long-tail rank of “untiring” in English

Word frequency stretches from the small set of words we reach for constantly (left) out to the long tail barely used once in a while (right).untiringfalls in this rarity band:

#1#100#1K#10K#100K
← used constantlyrarely used →

Ticks step logarithmically, so each one marks a roughly tenfold drop in how often the word turns up. Rare peers in the same band: “unspecific” (#85,897), “untreatable” (#85,899), “unquiet” (#85,896). Among 1,433 “U” headwords, “untiring” is #85,898. Source: FrequencyWords open word-frequency list.

Rare enough to double-check

untiring is uncommon English at frequency #85,898 among 1,433 “U” headwords, classed as anadjective. Rarity is why readers land here mid-draft. 2 senses are on record.

No misspelling variants are generated for untiring in our index, which points to an orthography that plays by predictable English rules. We don't track a confusable pairing for this entry, a sign it's visually distinctive enough not to be mixed up with another word.

Etymologically, the entry records: From un- + tiring. The correct English form is untiring, spelled U-N-T-I-R-I-N-G.

Definition

  1. 1
    Not able to be tired; inexhaustible.
  2. 2
    Unfailing; resolute.

Recorded use

Wiktionary example

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

  1. A generation ago Chien-ch'ang was perhaps the least known part of all China to the outside world. About the middle of the thirteenth century the Mongol, Kublai Khan, acting as general of the forces of his brother, Genghis Khan, went through here to the conquest of Tali, then an independent kingdom in the southwest, and the untiring Venetian following in h…

Etymology

From un- + tiring.

Definitions, pronunciation, and etymology for this entry are drawn from Wiktionary via the kaikki.org structured extract (CC BY-SA); frequency ordering uses the FrequencyWords open word-frequency list (2018 English corpus, MIT). See the methodology for how each field is sourced and updated.

Frequently Asked Questions

How do you spell "untiring"?
"untiring" is spelled U-N-T-I-R-I-N-G.
What does "untiring" mean?
As an adjective, "untiring" means: Not able to be tired; inexhaustible.
What is the origin of the word "untiring"?
From un- + tiring. 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.

Similar English words by spelling shape

Same letter count and similar misspelling depth for "untiring", not the corpus desk frequency band.

Same letter count

Frequency-ranked English headwords with 8 letters (nearest by frequency rank).

Source: Wiktionary (via kaikki.org) Structured Wiktionary extract

Source: FrequencyWords open word-frequency list