Question

complete the analogy. concerned is to distraught as interested is to thoughtful partial spellbound curious

Explanation:

The analogy follows a relationship of increasing intensity: "concerned" is a mild level of worry, while "distraught" is an extreme, overwhelming version of that emotion. For "interested", we need an extreme form of that feeling. "Spellbound" means completely fascinated or captivated, which is an intense version of being interested, matching the intensity shift of the first pair.

Answer:

spellbound