insipid 21 synonyms and 1 antonyms for insipid, ranked by how commonly they're used. Adjective — Lacking flavor; bland. Synonyms for insipid bland cardboard flaggy flavorless ingustible intastable savorless tame gustless sapidless mawkish smackless tasteless unsavory untasteable vapid wallowish watery waugh wearish wersh Antonyms for insipid gustable ← Back to the full definition of insipid