tough

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Of a material, strong and resilient; sturdy

• That isn't a tough decision.

  Das ist keine schwierige Entscheidung.

  Tatoeba · CK · CC BY 2.0 FR

• This was a tough decision.

  Das war eine schwierige Entscheidung.

  Tatoeba · CK · CC BY 2.0 FR

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Of food, difficult to cut or chew

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Of a person or animal, rugged or physically hardy

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Of a person, stubborn or persistent; capable of stubbornness or persistence

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Of weather, harsh or severe

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Rowdy or rough

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Cool, awesome, greatselten

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Of a question, difficult or demandingselten

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Undergoing plastic deformation before breakingselten

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Strict, not lenientselten