We found 17 dictionaries that define the word bad luck:

General (13 matching dictionaries)

1. bad luck: Merriam-Webster
2. bad luck: Vocabulary.com
3. bad-luck: Wordnik
4. bad luck: Wiktionary
5. bad luck: Dictionary.com
6. Bad Luck (Grimm), Bad Luck (Social Distortion song), Bad luck (disambiguation), Bad luck: Wikipedia, the Free Encyclopedia
7. bad luck: Rhymezone
8. bad luck: FreeDictionary.org
9. bad luck: Mnemonic Dictionary
10. bad luck: TheFreeDictionary.com
11. bad luck: Dictionary.com
12. bad luck: Longman Dictionary of Contemporary English
13. bad luck: Merriam-Webster

Business (1 matching dictionary)

14. bad luck: Legal dictionary

Computing (1 matching dictionary)

15. Luck, Bad, bad luck: Encyclopedia

Miscellaneous (1 matching dictionary)

16. bad luck: Idioms

Slang (1 matching dictionary)

17. Bad luck: Urban Dictionary

Definitions from Wiktionary (bad luck) ▸ noun:  (uncountable) An undesirable turn of events (such as an accident); misfortune. Similar: mischance, misfortune, ill luck, mishap, tough break, misluck, tough luck, unchance, ill-luck, ill-fortune, more... Opposite: good luck, fortune, serendipity Types: broken mirror, black cat, spilling salt, stepping on crack, Friday 13th, more... Phrases: Bad Luck and Trouble, Bad Luck Banging or Loony Porn, Bad Luck Streak in Dancing School, Bad Luck Brian, Bad Luck Fale, more... Adjectives: unfortunate, mischancy, unlucky, misadventured, disadventurous, ill-fated, infaust, unsonsy, waste, infortunate, suay ▸ Words similar to bad luck ▸ Usage examples for bad luck ▸ Idioms related to bad luck ▸ Wikipedia articles (New!) ▸ Words that often appear near bad luck ▸ Rhymes of bad luck ▸ Invented words related to bad luck