What does "not a care in the world" mean?
Native speaker’s answer
Rebecca
"Not a care in the world" is a common phrase that means to be extremely relaxed and to have no worries whatsoever. It is a phrase that is used when someone is calm and relaxed. Ex: When I'm on vacation, I don't have a care in the world! Ex: He doesn't have a care in the world. Ex: Even though this is very stressful, she does not have a care in the world.