i Register
In some senses, harmless is marked as obsolete. Watch for register when choosing this word.
adj
Incapable of causing harm or danger; safe.
Near-synonyms: benign, innocuous, innocent, undamaging, nonthreatening, unthreatening
This snake looks nearly the same as its poisonous cousin but is harmless.
Not intended to harm; inoffensive.
His humor can be annoying but is harmless.
The most rapid and most seductive transition in all human nature is that which attends the palliation of a ravenous appetite.[…]Can those harmless but refined fellow-diners be the selfish cads whose gluttony and personal appearance so raised your contemptuous wrath on your arrival?
Unharmed.