Explanation:

- The sentence states, "There was a dim figure." Here, "dim" is an adjective that suggests low visibility or poor clarity.

- Option 1: Distinct

- This means clear, easily seen, or recognizable.

- It is the opposite of "dim" because if something is distinct, it is very clear to see.

- Correct Answer: This is indeed the opposite of "dim."

- Option 2: Unclear

- This means not clear or difficult to understand or see.

- It is similar to "dim," not opposite.

- Option 3: Ill-defined

- This means not clearly or sharply defined, vague.

- Similar in meaning to "dim," not the opposite.

- Option 4: Indistinct

- This means not clear or sharply defined.

- It is more synonymous with "dim" than opposite.