bad luck

definition: unnecessary and unforeseen trouble resulting from an unfortunate event
example:
speech part: noun
synonyms: misfortune
definition: an unpredictable outcome that is unfortunate
example: if I didn't have bad luck I wouldn't have any luck at all
speech part: noun
synonyms: mishap mischance
definition: an unfortunate state resulting from unfavorable outcomes
example:
speech part: noun
synonyms: misfortune

How bad luck is being used?