Painless
Part of speech: adjective
Definition: Free from pain; without pain or trouble. Not difficult; easy.
Example sentence: I grew up in a family that was very barbed and difficult, and there was a lot of humor. None of it was painless humor. All of it was at someone else's expense. It was kind of always about power.
Harmless
Part of speech: adjective
Definition: incapable of causing harm or dangernot intended to harm; inoffensivesafe
Example sentence: Over the centuries, and even today, the Bible and Christian theology have helped justify the Crusades, slavery, violence against gays, and the murder of doctors who perform abortions. The words themselves are latent, inert, harmless - until they aren't.