bland

Adjective

• 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
    

• lacking stimulating characteristics; uninteresting
  • a bland little drama
    
  • a flat joke
    

• lacking taste or flavor or tang
  • a bland diet
    
  • insipid hospital food
    
  • flavorless supermarket tomatoes
    
  • vapid beer
    
  • vapid tea
    

Related words

• Synonyms: 
  politic , smooth , suave , flat , flavorless , flavourless , insipid , savorless , savourless , vapid