We found 33 dictionaries that define the word gratuitous:

General (26 matching dictionaries)

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

Business (4 matching dictionaries)

25. gratuitous: Law.com Dictionary
26. Everybody's Legal Dictionary (No longer online)
27. Glossary of Legal Terms (No longer online)
28. gratuitous: Legal dictionary

Computing (1 matching dictionary)

29. gratuitous: Encyclopedia

Medicine (1 matching dictionary)

30. online medical dictionary (No longer online)

Miscellaneous (1 matching dictionary)

31. gratuitous: A Word A Day

(Note: See gratuitously as well.)

Definitions from Wiktionary ( ) ▸ adjective:  Given freely; unearned. ▸ adjective:  Unjustified or unnecessary; not called for by the circumstances. Similar: needless, unnecessary, gratis, unneeded, uncalled-for, free, costless, unpaid, unmerited, complimentary, more... Opposite: unmerited, undeserved, unwarranted Types: gratuitous violence, gratuitous nudity, gratuitous cameo, more... Phrases: gratuitous promise, gratuitous service, gratuitous bailment, gratuitous contract, Gratuitous Sax & Senseless Violins, more... Adjectives: more, little, best, such, primary, large, somewhat, only, national, quite, way ▸ Word origin ▸ Words similar to gratuitous ▸ Usage examples for gratuitous ▸ Idioms related to gratuitous ▸ Wikipedia articles (New!) ▸ Popular nouns described by gratuitous ▸ Words that often appear near gratuitous ▸ Rhymes of gratuitous ▸ Invented words related to gratuitous