The antonyms for the word "more athrill" are varied, as it is a relatively uncommon phrase. Some possible options may include "calm," "unexcited," "bored," or "disinterested." These antonyms all convey a sense of disengagement or lack of enthusiasm, which is the opposite of the excitement and energy conveyed by the original term. Depending on the context, other antonyms may be more appropriate. For example, if the phrase is being used to describe a dangerous or frightening situation, antonyms like "safe," "secure," or "comfortable" may be more appropriate. Ultimately, the choice of antonym will depend on the nuances of the sentence and the intended meaning.