Bland
Part of speech: adjective
Definition: Mild; dull; soft; gentle; smooth in manner; suave. Having a soothing effect; not irritating or stimulating. Lacking in taste or vigor.
Example sentence: A bland smile is like a green light at an intersection, it feels good when you get one, but you forget it the moment you're past it.
Unexciting
Part of speech: adjective
Definition: Not exciting