Unastounded, the state of not being surprised or shocked, can be expressed in various ways. Some synonyms include unsurprised, unimpressed, unaffected, and untouched. If someone is unastounded by something, they may also be nonchalant, blase, or indifferent. Other possible synonyms for unastounded include unshaken, unmoved, cool, and collected. These words all convey a sense of calmness and lack of emotional disturbance. On the other hand, if someone is not unastounded, they may be astonished, amazed, or stunned. Regardless of the synonym used, the absence of astonishment can signal either a lack of interest or a sense of familiarity and understanding.