1. Obscur.
2. Mystérieux.
ETYM Old Eng. dark, derk, deork, as. dearc, deorc; cf. Gael. and Irish dorch, dorcha, dark, black, dusky.
1. (Used of color) Having a dark hue.
2. (Used of hair or skin or eyes) Brownish or black.
3. Devoid or partially devoid of light or brightness; shadowed or black or somber-colored.
4. Marked by difficulty of style or expression; SYN. obscure.
5. Not giving performances; closed.
6. Secret.
7. Showing a brooding ill humor; SYN. dour, glowering, glum, moody, morose, saturnine, sour, sullen.
Characterized by hopelessness; filled with gloom; SYN. grim.
So shaded as to be dark or gloomy; SYN. mirky.
ETYM Latin tenebrosus, from tenebrae darkness: cf. French ténébreux.
Dark and gloomy; SYN. tenebrific, tenebrious.