Hunkered down is a common phrase that is used to describe someone who is crouched or sitting in a low position, often with their knees bent. While this phrase is commonly used, there are many synonyms for this expression that can be used to add variety and depth to writing.
Some other ways to express hunkering down include squatting, crouching, huddling, sitting low, and nesting. These expressions convey a sense of safety and security, as if the person is seeking shelter from a storm or danger.
Regardless of which synonym you choose to use, it's important to focus on the feeling of being low and close to the ground. Whether it's hunkering down in fear or huddling together for warmth, these expressions help to convey a sense of shelter and protection.