Step 1: Understanding the Concept:
"Aboriginal" means original, indigenous, or existing from the earliest times.
Step 2: Detailed Explanation:
"Modern" means relating to present or recent times — opposite of ancient/original. "Popular" means liked by many. "Current" means belonging to present time. "Contemporary" means living or occurring at the same time. While "Modern" is the clearest antonym.
Step 3: Final Answer:
Thus, "Modern" is the correct antonym.