The phrase "more white-haired" refers to someone who has a greater amount of white or gray hair. There are several synonyms for this phrase, including "grayer," "silver-haired," "ashen-haired," and "hoary." These words can all be used to describe someone who has aged and has more white or gray hair than they did before. Other synonyms that can be used to describe aging include "elderly," "senior," "aged," and "venerable." When looking for synonyms for "more white-haired," it is important to choose a word that accurately describes the person's age and appearance while also being respectful and sensitive to their personal experiences.