not have a care in the world

idiom

Definition of not have a care in the world

: to have no worries at all She acts as if she doesn't have a care in the world.

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“Not have a care in the world.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/not%20have%20a%20care%20in%20the%20world. Accessed 12 Aug. 2020.

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