Explanation:

- Pathetic generally means something causing or evoking pity, especially through vulnerability or sadness.

- Option 1: Pitiful - This is correct. "Pitiful" shares a similar meaning with "pathetic," as it also relates to invoking pity.

- Option 2: Dull - Refers to something lacking excitement or interest, which is not synonymous with "pathetic."

- Option 3: Insignificant - Means not important or lacking influence, different from the sense of sadness associated with "pathetic."

- Option 4: Curious - Indicates a strong desire to learn something, unrelated to the emotion of pity or sadness.