Nigrescent is a word that means black or dark in color. However, there are several synonyms that can be used interchangeably for this word. Some of these include Ebony, sable, pitch-black, inky, jet-black, coal-black, dark, murky, and shadowy. Each of these synonyms has its own nuance, so it is important to choose the right one for the context in which it is used. Ebony and sable carry a connotation of luxury and elegance. Pitch-black, jet-black, and inky convey a more intense or ominous feeling. Dark, murky, and shadowy are more neutral in tone and can be used in a variety of contexts.