Unastonished refers to a state of not being surprised or amazed. Synonyms for unastonished include blase, indifferent, nonplussed, unperturbed, unimpressed, unsurprised, and unmoved. When you are unastonished, you may be described as cool, collected, or composed. These synonyms can be used to describe a person who is not easily swayed by events or situations. They may have seen or experienced similar situations before, giving them a sense of detachment. Being unastonished can be a desirable quality in some professions, making someone valuable for their ability to remain calm under pressure. Using synonyms can help add variety to your writing, making it more engaging and descriptive.