Armigerous is a word that is used to describe someone who is entitled to bear arms. However, there are a number of other synonyms for this word. One alternative is "heraldic," which refers to the study of armorial bearings and coat of arms. Another synonymous term is "escutcheoned," which means having a shield or coat of arms. Other similar words include "coat-of-arms bearing," "armorial," or simply "nobility." Some other related words that may be used include "genealogist," "heraldry expert," and "chivalric." Whether you are discussing the study of heraldry or the history of nobility, these synonyms can be helpful in making your writing more varied.