Unpleasant, bad, or incorrect.
Greek kakos, bad or evil.
The most common word here is cacophony (Greek phōnē, sound) a discordant mixture of sounds. In medicine, cachexia (Greek hexis, habit) is the dramatic weight loss that can occur in cancer patients. Other examples are cacodemon (Greek, daīmon, spirit), a malevolent spirit or person; and cacography (invented on the pattern of orthography), bad handwriting or spelling.
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