anodyne
adj//ˈæn.ə.daɪn//dövande, narkotisk, smärtstillande, lugnande, blek, nedtonad, urvattnad
(pharmaceutical effect) Capable of soothing or eliminating pain. [from 16th c.]
(figuratively) Soothing or relaxing. [from 18th c.]
(by extension) Noncontentious, blandly agreeable, unlikely to cause offence or debate. [from 20th c.]