"innocuous" in the adjective sense
1. innocuous
not injurious to physical or mental health
2. innocuous, unobjectionable
not causing disapproval
"it was an innocuous remark"
"confined himself to innocuous generalities"
"unobjectionable behavior"
3. innocent, innocuous
lacking intent or capacity to injure
"an innocent prank"
Source: WordNet® (An amazing lexical database of English)
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