Adjective innocuous has 4 senses
- innocuous, harmless - not injurious to physical or mental health
Antonyms: noxious, harmful, baneful, deadly, pernicious, pestilent, corrupting, degrading, vesicatory, vesicant
- harmless, innocuous - unlikely to harm or disturb anyone; "harmless old man"
Antonyms: dangerous, unsafe (indirect, via safe)
- innocuous, unobjectionable - not causing disapproval; "it was an innocuous remark"; "confined himself to innocuous generalities"; "unobjectionable behavior"
Antonym: offensive (indirect, via inoffensive)
- innocent, innocuous - lacking intent or capacity to injure; "an innocent prank"
Antonym: harmful (indirect, via harmless)
,