Answer:
1. Lacking flavor or zest; not tasty: insipid soup. 2. Lacking qualities that excite, stimulate, or interest; dull.
Explanation: Some common synonyms of insipid are banal, flat, inane, jejune, and vapid. While all these words mean "devoid of qualities that make for spirit and character," insipid implies a lack of sufficient taste or savor to please or interest.