We found 29 dictionaries that define the word ruthless:

General (26 matching dictionaries)

1. ruthless: Merriam-Webster.com
2. ruthless: Oxford Learner's Dictionaries
3. ruthless: American Heritage Dictionary of the English Language
4. ruthless: Collins English Dictionary
5. ruthless: Vocabulary.com
6. Ruthless, ruthless: Wordnik
7. ruthless: Cambridge Advanced Learner's Dictionary
8. ruthless: Wiktionary
9. ruthless: Webster's New World College Dictionary, 4th Ed.
10. ruthless: The Wordsmyth English Dictionary-Thesaurus
11. ruthless: Infoplease Dictionary
12. ruthless: Dictionary.com
13. ruthless: Online Etymology Dictionary
14. ruthless: Cambridge Essential American English Dictionary
15. Ruthless (Ace Hood album), Ruthless (TV series), Ruthless (film), Ruthless (horse), Ruthless, Ruthless, The Ruthless: Wikipedia, the Free Encyclopedia
16. Ruthless: Online Plain Text English Dictionary
17. ruthless: Webster's Revised Unabridged, 1913 Edition
18. ruthless: Rhymezone
19. Ruthless: AllWords.com Multi-Lingual Dictionary
20. ruthless: Webster's 1828 Dictionary
21. ruthless: Free Dictionary
22. ruthless: Mnemonic Dictionary
23. ruthless: Dictionary/thesaurus
24. Ruthless: World Wide Words

Business (1 matching dictionary)

25. ruthless: Legal dictionary

Computing (1 matching dictionary)

26. ruthless: Encyclopedia

Slang (1 matching dictionary)

27. Totally Unofficial Rap (No longer online)

(Note: See ruthlessly as well.)

Definitions from Wiktionary ( ) ▸ adjective:  Without pity or compassion; cruel, pitiless. Similar: pitiless, unmerciful, merciless, remorseless, unpitying, unpitiful, hardened, lack-pity, cold, hardhearted, more... Opposite: merciful, compassionate, kind, tender Types: heartless, merciless, spiteful, vindictive, malicious, cruel, barbaric, brutal, more... Phrases: Ruthless People, Ruthless Records, The Ruthless, Ruthless Rap Assassins, Ruthless Records discography, more... Colors:     black,     red,     dark gray,     blood red,     charcoal, more... ▸ Word origin ▸ Words similar to ruthless ▸ Usage examples for ruthless ▸ Idioms related to ruthless ▸ Wikipedia articles (New!) ▸ Popular nouns described by ruthless ▸ Words that often appear near ruthless ▸ Rhymes of ruthless ▸ Invented words related to ruthless