mercilessly

/ˈmɜːsɪləslɪ/

//ˈmɜːsɪləslɪ// adv

"mercilessly" is a 11-letter English headword indexed on PlainSpell.

The verdict

“mercilessly” is a moderately-common English word, ranked #32,079 in English word frequency and used as an adverb.

#32,079
frequency rank, English
11
letters
16
tracked misspellings
1
confusable pair

According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - In a merciless manner.

Visual similarity to commonly confused words

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

mercilessly vs merciless
82% similar

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

Key facts for mercilessly
PropertyValue
Headwordmercilessly
LanguageEnglish
Part of speechAdverb
IPA/ˈmɜːsɪləslɪ/
Letters11
Frequency rank#32,079
Misspellings tracked16
Confusable pairs1
SourceWiktionary (kaikki.org)

Where “mercilessly” sits in English frequency

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

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

Scale is logarithmic (each tick is 10× rarer). Source: FrequencyWords open word-frequency list.

Spelling & Dictionary Insight

The English entry for mercilessly is 11 letters long, classified as an adverb, and transcribed in the International Phonetic Alphabet as /ˈmɜːsɪləslɪ/. Corpus data places it at rank #32,079 in overall English word frequency, marking it as uncommon enough that many writers pause before typing it. The dominant gloss from Wiktionary reads: "In a merciless manner.".

Our generated misspelling index lists 16 likely wrong-spelling variants for mercilessly, with forms such as "emrcilessly", "mecrilessly", and "merccilessly". 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, "merciless", since the words sound or look close enough that writers reach for the wrong one mid-sentence.

Etymologically, the entry records: From merciless + -ly. The correct English form is mercilessly, spelled M-E-R-C-I-L-E-S-S-L-Y.

Definition

  1. 1
    In a merciless manner.

Etymology

From merciless + -ly.

This word in other languages

Common misspellings

Also misspelled as: emrcilessly,mecrilessly,merccilessly,mercielssly,mercileslsy,mercilesly,mercilesslly,mercilesslyy,mercilessyl,mercillessly,mercilsesly,mercliessly,mericlessly,merrcilessly,mmercilessly,mrecilessly

Misspelling Pattern Breakdown

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

emrcilessly2mecrilessly2merccilessly1mercielssly2mercileslsy2mercilesly1mercilesslly1mercilesslyy1
Edit distance from "mercilessly"

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 "mercilessly"?
"mercilessly" is spelled M-E-R-C-I-L-E-S-S-L-Y. The IPA pronunciation is /ˈmɜːsɪləslɪ/.
What does "mercilessly" mean?
As an adverb, "mercilessly" means: In a merciless manner.
What words are commonly confused with "mercilessly"?
"mercilessly" is commonly confused with "merciless". These words look or sound similar but have different meanings. PlainSpell provides detailed comparisons for each pair.
How do you pronounce "mercilessly"?
The IPA (International Phonetic Alphabet) transcription for "mercilessly" is /ˈmɜːsɪləslɪ/. 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 "mercilessly"?
From merciless + -ly. 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.

Using “mercilessly”

The practical upshot for anyone who landed here from a spell-check.

  • The one correct English spelling is M-E-R-C-I-L-E-S-S-L-Y - every other letter order is a misspelling in standard orthography.
  • Say it as /ˈmɜːsɪləslɪ/ (IPA); tap the speaker on the pronunciation badge to hear it where audio exists.
  • Don't mix it up with “merciless” - see the side-by-side comparison. mercilessly vs merciless
  • Browse more English words and confusable pairs in the same reference. English words
Data Source

Wiktionary (via kaikki.org), licensed under CC BY-SA & GFDL. Word ordering uses an open word-frequency list; misspelling variants are generated by edit-distance from the correct headword.

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

Source: FrequencyWords open word-frequency list FrequencyWords open word-frequency list