The antonyms for the word "were impaired" include improving, recovering, enhancing, strengthening, repairing, and restoring. When a person's cognitive or physical abilities are impaired, it can be a challenging experience for them and those around them. However, there are many ways in which these impairments can be overcome or improved. For example, through therapy or rehabilitation, a person's cognitive or physical abilities can be strengthened and restored. Similarly, through medication or lifestyle changes, impairments can be improved or recovered. It is important to remember that impairment does not always define someone and that with time and effort, these challenges can become opportunities for growth and improvement.