RothBernhardt disease, also known as hereditary hypotonia with external ophthalmoplegia and cognitive impairment, is a rare genetic disorder that affects muscle tone, eye movements, and cognitive function. While there are no direct synonyms for this particular disease, it can be referred to using several alternative terms. Some possibilities include hereditary hypotonia, a condition characterized by reduced muscle tone from birth, and external ophthalmoplegia, a condition involving paralysis or weakness of the eye muscles. Additionally, cognitive impairment can be described as a cognitive disability or intellectual disability. While these terms do not replace the specific name of RothBernhardt disease, they help convey its key symptoms and characteristics.