Step 1: Definition of "Insipid"
"Insipid" denotes a lack of flavor, interest, or vitality, signifying something dull or unexciting.
Step 2: Evaluation of Options.
- Uninteresting: Lacks interest, related to insipid but not its opposite.
- Savory: Flavorful or delicious, the opposite of insipid in taste.
- Spiritless: Lacking energy or vitality, similar to insipid but not its opposite.
- Bland: Dull or unexciting, synonymous with insipid.
Step 3: Determination. "Savory" is the appropriate antonym, representing something flavorful, contrasting with the blandness of "insipid."Therefore, option 2, Savory, is correct.
Final Answer: \[\boxed{\text{The correct answer is 2. Savory.}}\]