bland
Definitions
Lacking strong features or characteristics and therefore uninteresting.
Lacking strong flavor or seasoning; mild or insipid.
Showing little emotion or animation; dull or indifferent.
Examples
The soup was so bland that I had to add extra salt and pepper.
His explanation of the complex situation was surprisingly bland and uninspiring.
The interior design of the office was rather bland, featuring only shades of grey and white.
Synonyms
insipid tasteless flavorless dull uninteresting vapid characterless