couldn't care less
To not care at all; to have no interest or concern; to be apathetic.
I used to be so careless / As if I couldn't care less
care
UK /kɛə/ US /kɛə/
noun 5verb 5name 1
Definitions
noun
1
Close attention; concern; responsibility.
Care should be taken when holding babies.
I thank thee for thy care and honest pains.
2
Worry.
I don’t have a care in the world.
Yes, heaven, I’m in heaven / And the cares that hung around me through the week / Seem to vanish like a gambler’s lucky streak
3
Maintenance, upkeep.
dental care
Beside those things that are without, that which cometh upon me daily, the care of all the churches.
4
The treatment of those in need (especially as a profession).
The US supreme court has ruled unanimously that natural human genes cannot be patented, a decision that scientists and civil rights campaigners said removed a major barrier to patient care and medical innovation.
5
The state of being cared for by others.
in care
verb
1
To be concerned (about), to have an interest (in); to feel concern (about).
She doesn’t care what you think.
I don’t care, I’m still going.
2
To want, to desire; to like; to be inclined towards or interested in.
Would you care for another slice of cake?
Would you care to dance?
3
To be affected by, to treat as relevant for a subsequent course of action.
An event aggregator facilitates a fire-and-forget model of communication. The object triggering the event doesn’t care if there are any subscribers. It just fires the event and moves on.
4
(with for) To look after or look out for.
Young children can learn to care for a pet.
He cared for his mother while she was sick.
5
To mind; to object.
After introducing herself, the therapist then asked the patient if it would be all right to do the exercises which the doctor had ordered for her. The patient would response, "Well, I don't care to." For several days, the therapist immediately left the room and officially recorded that the patient had "refused" therapy. […] It was not until months later that this therapist […] discovered that she should have been interpreting "I don't care to" as "I don't mind" doing those exercises now.
name
1
A surname.
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