There are several synonyms that can be used for the word "squatly." Some of these synonyms include crouched, hunched, hunkered, and lowered. The word "crouched" implies a posture where the body is bent over with the knees bent and the buttocks close to the heels. "Hunched" suggests a stooped over posture with the shoulders rounding forward and the head lowered. "Hunkered" is used to describe a posture where a person is sitting on their haunches with their legs bent. "Lowered" suggests a posture where the body is brought down close to the ground. All of these synonyms can be used to describe someone who is in a position of physical exertion or contemplation.