spiral · noun C /ˈspɑɪ.rəl/Full view
a downward spiral
C2 a situation which is getting worse very quickly, and which is difficult to control
Dictionary example:

After his death, the family went into a downward spiral.

Learner example:

Unemployment is one of the major problems of our society. It is the first step of a downward spiral. (Certificate of Proficiency in English; C2; German)

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