Unamazed is a word that describes a lack of surprise or astonishment. However, there are several synonyms for unamazed, which can be used to express a similar sentiment in different ways. For instance, the word unfazed expresses a sense of calmness and composure in the face of adversity or surprise. Similarly, unimpressed connotes a sense of indifference or disinterest towards what comes across. Unperturbed is another synonym, which describes a person who is unaffected or poised regardless of the external situation. Another word that can be used as a synonym for unamazed is nonchalant, which implies a sense of casualness and lack of interest in what is happening around.