ANT: Turbid, stormy, agitated, tempestuous, ruffled.
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KEY: Serf.
SYN: Slave, servant, villain, laborer.
ANT: Lord, baron, squire, proprietor, noble, landowner, liege, liegelord.
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KEY: Series.
SYN: Order, course, sequence, succession, train, rotation, [See EVENT].
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KEY: Serious.