saturnine

/ˈsætərnaɪn/
adjective
  1. Having a gloomy, dark, or sullen mood or appearance; slow and serious in temperament.
    • The old detective had a saturnine manner that suited his job perfectly.
    • She gave a saturnine reply, staring out the window without smiling.
    • His saturnine expression made everyone think he was upset, but he was just tired.
  2. Relating to or influenced by the planet Saturn, especially in astrology, often associated with a cold, distant, or melancholy nature.
    • In astrology, a saturnine personality is thought to be disciplined but reserved.
    • The saturnine influence of the planet was said to bring a serious energy to the day.
    • He had a saturnine quality that made him seem older and wiser than his years.
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