horrid /horˈid/

1. Nasty, repellent, detestable (informal)
2. Shaggy, bristling, rough (archaic or poetic)
3. Horrible (archaic)

• optimists
• optimization
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• optimizer
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• optimizing
• optimum
• opt in
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• optioned
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• optoacoustic
• optoelectronic
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• optologies