Presaging means to foretell or predict something. So, antonyms for "more presaging" could be words that mean the opposite - to not foretell or not predict something. Words like "unforeseeable," "unpredictable," "unexpected," "surprising," and "unexpectedly" could be used as antonyms for "more presaging". These words would imply that something is happening without any prior indication or warning. They suggest a lack of foresight or ability to predict events accurately. Therefore, these antonyms suggest uncertainty, ambiguity, and a lack of ability to anticipate what's going to happen next.