Meaning of nemesis

nem•e•sis

Pronunciation: (nem'u-sis), [key]
— pl. -ses
  1. something that a person cannot conquer, achieve, etc.: The performance test proved to be my nemesis.
  2. an opponent or rival whom a person cannot best or overcome.
  3. (cap.)the goddess of divine retribution.
  4. an agent or act of retribution or punishment.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
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