bland 
(blănd)
(blănd)adj. bland·er, bland·est
1. Characterized by a moderate, unperturbed, or tranquil quality, especially:
a. Pleasant in manner; smooth: a bland smile.
b. Not irritating or stimulating; soothing: a bland diet.
c. Exhibiting no personal worry, embarrassment, or concern: told a series of bland lies.
2.
a. Dull and insipid: a bland little drama.
b. Having little or no distinctive flavor: bland cooking.
[Latin blandus, caressing, flattering; see mel-1 in the Appendix of Indo-European roots.]
blandly adv.
blandness n.