bland

adjective

1. 1

   smoothly agreeable and courteous with a degree of sophistication

   he was too politic to quarrel with so important a personage

   the manager pacified the customer with a smooth apology for the error

2. 2

   lacking stimulating characteristics; uninteresting

   a bland little drama

   a flat joke

3. 3

   lacking taste or flavor or tang

   a bland diet

   insipid hospital food