SYN: Trouble, trial, grief, pain, disease, misery, hardship, sorrow.
ANT: Consolation, relief, alleviation, assuagement, more (or, positively:), boon, blessing, gratification, pleasure.
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KEY: Affluence.
SYN: Abundance, plenty, wealth, riches, opulence.
ANT: Want, scarcity, penury, indigence, poverty, impecuniosity, straitness, lack.
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KEY: Afflux.
SYN: Accession, importation, augmentation, increase, addition, influx.
ANT: Decrease, detriment, detraction, diminution, exhaustion, failure, ebb.