We found 28 dictionaries that define the word Laborious:

General (25 matching dictionaries)

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

Business (1 matching dictionary)

24. laborious: Legal dictionary

Computing (1 matching dictionary)

25. laborious: Encyclopedia

Slang (1 matching dictionary)

26. laborious: Urban Dictionary

(Note: See laboriously as well.)

Definitions from Wiktionary (laborious) ▸ adjective:  Requiring much physical effort; toilsome. ▸ adjective:  Mentally difficult; painstaking. ▸ adjective:  Industrious. Similar: toilsome, arduous, labourious, grueling, gruelling, backbreaking, effortful, heavy, punishing, hard, more... Opposite: effortless, easy, simple, uncomplicated, facile Types: arduous, burdensome, cumbersome, onerous, taxing, more... Phrases: laborious effort, laborious task, laborious or stressful, arduous difficult laborious messy, opposite of laborious, more... Colors:     charcoal,     slate gray,     olive drab,     rust,     burnt umber, more... ▸ Word origin ▸ Words similar to Laborious ▸ Usage examples for Laborious ▸ Idioms related to Laborious ▸ Wikipedia articles (New!) ▸ Popular nouns described by Laborious ▸ Words that often appear near Laborious ▸ Rhymes of Laborious ▸ Invented words related to Laborious