Synonyms for Pitchy (same or very similar meaning)
WordNet sense 1 (of the blackest black; similar to the color of jet or coal):
jet, jet-black, sooty, coal-blackWordNet sense 2 (having no hue):
achromaticWordNet sense 3 (having the characteristics of pitch or tar):
resinous, tarry, resiny, tarryWordNet sense 4 (tending to adhere):
adhesiveFrom the ODE community, based on WordNetadd/edit