Saturnine

1. (a.) Cold; grave; gloomy; dull; -- the opposite of mercurial; as, a saturnine person or temper.

2. (a.) Born under, or influenced by, the planet Saturn.

3. (a.) of or pertaining to lead; characterized by, or resembling, lead, which was formerly called Saturn.

Thesaurus Entries

black, bleak, crabbed, dark, dismal, dour, drear, drearisome, dreary, funebrial, funereal, gloomy, glum, grave, gray, grim, moping, morose, reserved, serious, silent, solemn, somber, sombrous, staid, sulky, surly, taciturn, triste, ugly, uncommunicative, weariful, wearisome, weary