Lack of balance is a common condition that can have a significant impact on one's life. Finding the right words to express this condition can be challenging, but it's important to understand synonyms that can accurately convey the same meaning. Some other words that can be used in place of "lack of balance" are instability, unsteadiness, disequilibrium, and imbalance. These words can help describe the feeling of not being in control and not being able to maintain a stable position. It's important to seek the help of a medical professional if you are experiencing any of these symptoms, as they can be indicative of a serious condition.