The antonym for the word "more particularized" would be "less generalized" or "more generalized." While "more particularized" refers to a more specific or detailed approach, "less generalized" would mean a broader approach that covers more general ideas.
For example, if someone asked for a "more particularized" explanation of a topic, they would be seeking a more detailed explanation that covers specific aspects of the topic. In contrast, a "less generalized" explanation would be more general, covering broader aspects of the topic without getting into specific details. So, depending on the situation, either term could be used to convey the opposite meaning of "more particularized.