The word showing curiosity can be antonymized by several terms, including indifference, apathy, disinterest, and unconcern. Indifference implies a lack of interest or concern in a particular subject. Apathy, on the other hand, refers to a lack of energy or enthusiasm about something. Disinterest can be used to describe someone who is not engaged in a topic or a specific subject. Finally, unconcern suggests a lack of interest in a subject or a lack of attention to it. By knowing these antonyms, people can better understand the significance and meaning of the word showing curiosity.