Open English Wordnet
Adjectives
(a)clean, unobjectionable(of behavior or especially language) free from objectionable elements; fit for all observers“good clean fun”, “a clean joke”
(s)innocuous, unobjectionablenot causing disapproval“it was an innocuous remark”, “confined himself to innocuous generalities”, “unobjectionable behavior”
(s)unobjectionablenot objectionable“the ends are unobjectionable; it's the means that one can't accept”