saturnine.
saturnine /ˈsadərˌnīn/ I. adjective 1. (of a person or their manner) slow and gloomy • a saturnine temperament. 2. (of a person or their features) dark in coloring and moody or mysterious • his saturnine face and dark, watchful eyes. 3. (of a place or an occasion) gloomy. II. derivatives saturninely adverb – origin late Middle English (as a term in astrology): from Old French saturnin, from medieval Latin Saturninus ‘of Saturn’ (identified with lead by the alchemists and associated with slowness and gloom by astrologers).
