: having no automobile : without a car … she was too nervous to drive and carless in any case.—

What does it mean to be careless about something?

When you're careless about something, you're not giving it much attention or consideration. If you're careless about mowing the lawn, you might mow over your mother's prized daffodils without even noticing. When you say, "I couldn't care less" about something, you're probably going to be pretty careless about it, too.

Is car less a word?

adjective. Not possessing or provided with a motor car; without a car or cars.