1. in a way that causes no harm or damage; without causing injury or hurt

Examples

• The snake slithered harmlessly past the campers.
• The joke was meant harmlessly, without any intent to offend.
• The chemical dissolves harmlessly in water.
• The fireworks exploded harmlessly in the night sky.
• She laughed harmlessly at his silly mistake.
• The prank was harmlessly executed as a surprise for his birthday.