merciless

/ˈmɜːsɪləs/

//ˈmɜːsɪləs// adj

By · According to Wiktionary data (CC BY-SA) ·

"merciless" is a 9-letter English headword indexed on PlainSpell.

The verdict

“merciless” has 12 generated spelling variants in the English index at frequency #27,558. The variants make it a useful spelling check.

#27,558
frequency rank, English
4,057
“M” headwords
12
tracked misspellings
1
confusable pair

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - Showing no mercy; cruel and pitiless.

Corpus desk

Index EN-merciless · merciless · English

merciless · rank #27,558 · 12 variants · 1 confusable

  • FREQ-MID #27,558
  • LEN-LONG 9 letters
  • VOW-3 3 vowels
  • CONFUS-LOW 1 pairs
  • VAR-MID 12 variants
  • BOOK-MID 4,057
  • PHOTO-FINISH McGovern

Nearest frequency peer: McGovern (-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.

Rank peers near misspelling magnet “merciless”

Same rarity band: useful when a typo lands on a peer headword

corpus weight

What this shows “merciless” sits among these FrequencyWords peers; misspelling depth is tracked separately in the edit-distance chart.

Source FrequencyWords open word-frequency list As of September 3, 2026

Visual similarity to commonly confused words

How many letter changes separate each confused pair (Levenshtein distance, normalized).

merciless vs mercilessly
82% similar

Source: PlainSpell confusable corpus (Wiktionary, CC BY-SA).

Key facts for merciless
PropertyValue
Headwordmerciless
LanguageEnglish
Part of speechAdjective
IPA/ˈmɜːsɪləs/
Letters9
Frequency rank#27,558
Misspellings tracked12
Confusable pairs1
SourceWiktionary (kaikki.org)

Frequency seat of misspelling magnet “merciless”

Every-word frequency runs from the handful of words we use constantly (left) to the long tail used once in a blue moon (right).mercilesslands here:

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

The axis is logarithmic, with each marked tick roughly ten times rarer than the last. Same rarity band neighbours include “McGovern” (#27,557), “merle” (#27,559), “Maud” (#27,556). Among 4,057 “M” headwords, “merciless” is #27,558. Source: FrequencyWords open word-frequency list.

A misspelling magnet

The generator records 12 spelling variants around merciless (IPA /ˈmɜːsɪləs/), anadjective. Corpus frequency is #27,558 among 4,057 “M” headwords. Dominant gloss: "Showing no mercy; cruel and pitiless.".

Our generated misspelling index lists 12 likely wrong-spelling variants for merciless, with forms such as "emrciless", "mecriless", and "mercciless". Every one of these variants traces to a single-character edit -- an added or dropped letter, a swapped consonant, or a vowel swap -- the kind of slip a spell-checker is built to catch. It also participates in 1 confusable-pair relationship, "mercilessly", where similar look or sound leads writers to substitute one word for another in context.

Etymologically, the entry records: From Middle English merciles, mercyles, equivalent to mercy + -less. The correct English form is merciless, spelled M-E-R-C-I-L-E-S-S.

Definition

  1. 1
    Showing no mercy; cruel and pitiless.

Recorded use

Wiktionary examples

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

  1. The sun is merciless today, so please take care of yourself.
  2. But the ruthless cleaning up of those streets and merciless treatment of gang members have triggered outrage and concern among human rights organizations, which have condemned Cecot as inhumane and unacceptable.

Etymology

From Middle English merciles, mercyles, equivalent to mercy + -less.

This word in other languages

despiadado(Español)impitoyable(Français)gnadenlos(Deutsch)

Common misspellings

Also misspelled as:

  • emrciless
  • mecriless
  • mercciless
  • mercielss
  • merciles
  • mercilless
  • mercilses
  • mercliess
  • mericless
  • merrciless
  • mmerciless
  • mreciless

Misspelling Pattern Breakdown

How far each generated variant is from the correct spelling of merciless - measured in single-character edits (insert, delete, or substitute a letter). Larger bars are easier to catch; one-edit slips are the sneakiest.

emrciless2mecriless2mercciless1mercielss2merciles1mercilless1mercilses2mercliess2
Edit distance from "merciless"

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 "merciless"?
"merciless" is spelled M-E-R-C-I-L-E-S-S. The IPA pronunciation is /ˈmɜːsɪləs/.
What does "merciless" mean?
As an adjective, "merciless" means: Showing no mercy; cruel and pitiless.
What words are commonly confused with "merciless"?
"merciless" is commonly confused with "mercilessly". These words look or sound similar but have different meanings. PlainSpell provides detailed comparisons for each pair.
How do you pronounce "merciless"?
The IPA (International Phonetic Alphabet) transcription for "merciless" is /ˈmɜːsɪləs/. 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 "merciless"?
From Middle English merciles, mercyles, equivalent to mercy + -less. 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 "merciless", not the corpus desk frequency band.

Same letter count

Frequency-ranked English headwords with 9 letters (nearest by frequency rank).

replenish#27,619saltwater#27,629Hampstead#27,485Schroeder#27,632

Similar misspelling depth

Headwords with a similar count of attested misspellings (12 here; floor ≥5).

mortuary12 variantsLombardi12 variantsintrepid12 variantsimpotent12 variants

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

Source: FrequencyWords open word-frequency list