Select the option that is opposite in meaning to the underlined word. The sky is boundless.

Step-by-step solution

Boundless: unlimited or infinite Finite: limited in size or extent. High: of great vertical extent. Vast: of very great extent or quantity; immense. Expansive: covering a wide area in terms of space or scope; extensive. Here, 'finite' is thus the opposite in meaning with the given word 'boundless'.