ruthless

/ˈɹuːθləs/

//ˈɹuːθləs// adj

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

The verdict

“ruthless” is a moderately-common English word, ranked #12,132 in English word frequency and used as an adjective.

#12,132
frequency rank, English
8
letters
11
tracked misspellings
1
confusable pair

According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - Without pity or compassion; cruel, pitiless.

Visual similarity to commonly confused words

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

ruthless vs ruthlessly
80% similar

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

Key facts for ruthless
PropertyValue
Headwordruthless
LanguageEnglish
Part of speechAdjective
IPA/ˈɹuːθləs/
Letters8
Frequency rank#12,132
Misspellings tracked11
Confusable pairs1
SourceWiktionary (kaikki.org)

Where “ruthless” 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). ruthless 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 ruthless is 8 letters long, classified as an adjective, and transcribed in the International Phonetic Alphabet as /ˈɹuːθləs/. Corpus data places it at rank #12,132 in overall English word frequency, marking it as uncommon enough that many writers pause before typing it. Wiktionary records 2 distinct senses for this headword, so context determines which meaning a reader should apply.

Our generated misspelling index lists 11 likely wrong-spelling variants for ruthless, with forms such as "rruthless", "rtuhless", and "ruhtless". Each of these forms differs from the correct spelling by one small edit: a doubled letter, a dropped silent letter, or a substituted vowel. It also participates in 1 confusable-pair relationship, "ruthlessly", a pairing that trips writers up because the two words share enough sound or shape to blur together.

Etymologically, the entry records: From Middle English reuþeles; equivalent to ruth + -less. The correct English form is ruthless, spelled R-U-T-H-L-E-S-S.

Definition

  1. 1
    Without pity or compassion; cruel, pitiless.
  2. 2
    Uncompromising; unrelenting.

Etymology

From Middle English reuþeles; equivalent to ruth + -less.

This word in other languages

Common misspellings

Also misspelled as: rruthless,rtuhless,ruhtless,ruthelss,ruthhless,ruthles,ruthlless,ruthlses,rutlhess,rutthless,urthless

Misspelling Pattern Breakdown

How far each generated variant is from the correct spelling of ruthless - expressed in single-character edits (insert, delete, or swap one letter). Bigger bars stand out at a glance; a one-edit slip is the hardest to catch.

rruthless1rtuhless2ruhtless2ruthelss2ruthhless1ruthles1ruthlless1ruthlses2
Edit distance from "ruthless"

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 "ruthless"?
"ruthless" is spelled R-U-T-H-L-E-S-S. The IPA pronunciation is /ˈɹuːθləs/.
What does "ruthless" mean?
As an adjective, "ruthless" means: Without pity or compassion; cruel, pitiless.
What words are commonly confused with "ruthless"?
"ruthless" is commonly confused with "ruthlessly". These words look or sound similar but have different meanings. PlainSpell provides detailed comparisons for each pair.
How do you pronounce "ruthless"?
The IPA (International Phonetic Alphabet) transcription for "ruthless" is /ˈɹuːθləs/. 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 "ruthless"?
From Middle English reuþeles; equivalent to ruth + -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.

Using “ruthless”

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

  • The one correct English spelling is R-U-T-H-L-E-S-S - every other letter order is a misspelling in standard orthography.
  • Say it as /ˈɹuːθləs/ (IPA); tap the speaker on the pronunciation badge to hear it where audio exists.
  • Don't mix it up with “ruthlessly” - see the side-by-side comparison. ruthless vs ruthlessly
  • 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