When it comes to synonyms for the term "gray-spotted", there are quite a few options that can be used to describe this specific pattern or coloring. In terms of similar words that capture the gray tones of this type of spotting, some possible options could include speckled, mottled, or flecked. These words all convey a sense of variation or irregularity in the coloring or patterning, which can be complemented by other terms like spotty, dappled, or stippled. Ultimately, the choice of synonym will depend on the context and goals of the writing, but with this range of options, there is sure to be an appropriate term for any need.