"Well adjusted" can be replaced with synonyms like balanced, grounded, adjusted, stable, healthy, adapted, normal, reasonable, and mentally sound. Each word carries a slightly different connotation, but generally implies that a person has a good sense of self-awareness, is emotionally stable, and can function well in social situations. These words are often used to describe individuals who are resilient and can cope well with stress and changes in circumstances. Being well adjusted can also refer to someone who has a positive outlook and is able to maintain healthy relationships with others. Using these synonyms can help add variety to your writing and better convey the intended meaning.