Gray beards are often used to describe older men who have long gray or white facial hair. However, there are several synonyms that can be used to reference this particular group of men. Some examples include 'elder statesmen,' 'veterans,' 'wise old men,' 'sages,' 'philosophers,' 'patriarchs,' 'respected elders,' and 'grand old men.' Each of these terms conveys a certain level of wisdom, experience, and respect that comes with age. The use of these synonyms can also help to avoid any negative connotations that may be associated with the term 'gray beards'.