INNOCUOUS

1. [s] lacking intent or capacity to injure; "an innocent prank"

2. [a] not injurious to physical or mental health

3. [s] not causing disapproval; "it was an innocuous remark"; "confined himself to innocuous generalities"; "unobjectionable behavior"

4. [s] unlikely to harm or disturb anyone; "harmless old man"

similar words

1. [a] harmless

2. [s] innoxious

3. [s] inoffensive

4. [s] uncontroversial

5. [s] insipid

6. [a] inoffensive

7. [a] safe

opposite words

1. [a] noxious

2. [a] harmful