slough of despond
Noun
Meaning
(formal) extreme depression
Source: WordNetSynonyms
low
depression
blues
hell
melancholia
despair
misery
melancholy
pessimism
hump
gloom
desolation
negativity
despondency
discouragement
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Antonyms
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Examples
Inaction will cause a man to sink into the slough of despond and vanish without a trace.