saturnine

adjective

1. sluggish in temperament; gloomy; taciturn.
2. suffering from lead poisoning, as a person.
3. due to absorption of lead, as bodily disorders.

adjective

1. having a gloomy temperament; taciturn
2. archaic
   1. of or relating to lead
   2. having or symptomatic of lead poisoning

adj.“gloomy, morose, sluggish, grave,” mid-15c., literally “born under the influence of the planet Saturn,” from Middle English Saturne (see Saturn) + -ine (1). Medieval physiology believed these characteristics to be caused by the astrological influence of the planet Saturn, which was the most remote from the Sun (in the limited knowledge of the times) and thus coldest and slowest in its revolution. adj.

1. Melancholy or sullen.
2. Produced by absorption of lead.