The term "whole ideas" refers to thoughts, concepts, or notions that are complete or undivided. As a concept itself, it may be challenging to find antonyms for the phrase as it is already an all-encompassing term. However, one could look at it from different angles and try to find words that may convey the opposite meaning such as "fragmented," "incomplete," "partial," or "divided ideas." These antonyms suggest that the ideas in question are not fully formed, and therefore, might not make sense on their own. In essence, the antonyms for the phrase "whole ideas" refer to a lack of completeness or cohesion in one's thoughts or concepts.