What is another word for greyscale?
Pronunciation: [ɡɹˈe͡ɪske͡ɪl] (IPA) 
Greyscale, also known as grayscale or grey tone, refers to an image that is composed solely of shades of neutral gray, varying from black to white. However, there are alternative words that can be used to describe greyscale depictions. One is monochromatic, which denotes an image consisting of only one color. Another term is achromatic, meaning that it is without color. Similarly, the word pallid can also be used to describe images in greyscale. Additionally, desaturated and muted are also synonyms for greyscale as they both refer to the absence of vibrant colors in an image. These words illustrate the various ways in which we can talk about shades of gray in image production.
