The antonyms for the phrase "leaved openmouthed" are numerous, as there are many words that describe feelings and reactions that are the opposite of being stunned or surprised. Some examples of antonyms for this expression include "bored," "unimpressed," "indifferent," "underwhelmed," "uninterested," "blase," "jaded," "disinterested," and "nonchalant." All of these terms describe a lack of emotion or reaction to something, making them the opposite of "leaved openmouthed." While being surprised can indicate a positive or negative reaction, having an opposite emotion can show a lack of engagement or interest in the situation at hand.