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unsuccessful
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bezowocny, nieudany (plan), odrzucony (kandydat)
Our relationship is unsuccessful. I'm sorry.
I was devastated after my unsuccessful campaign.
His plan to control the company turned out to be unsuccessful.
My application was unsuccessful. I have to look for something else.
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arid
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jałowy, bezowocny (np. rozmyślania, pomysły)
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unproductive
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fruitless
,
infructuous
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inconclusive
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sleeveless
It turned out to be a sleeveless search.
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ineffectual
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stillborn
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unfruitful
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languishing