expression
don't worry; there's nothing to worry about; everything is under control
A set phrase used to reassure someone that there is no need for concern. Often used in a somewhat formal or polite tone, but can be used casually as well.
心配ご無用、すべて順調です。
Don't worry, everything is going smoothly.
「大丈夫ですか？」「心配ご無用です。」
"Are you okay?" "There's no need to worry."
A set phrase composed of 心配 (worry), the honorific prefix ご, and 無用 (unnecessary). The exact origin is uncertain, but it follows a common pattern of polite reassurance expressions.