Concept:An antonym is a word with the opposite meaning. "Pragmatic" means practical and realistic, based on experience rather than theory.Explanation:"Pragmatic" describes a person or approach focused on what works in practice. Its opposite is "idealistic", which means pursuing high ideals without regard for practicality. For example, a pragmatic solution uses available resources, while an idealistic one aims for perfection. The other options—practical, logical, and rational—are all synonyms or near-synonyms of pragmatic, not antonyms. Therefore, the best antonym is idealistic.Answer:Option B: Idealistic.