What would be the prefix or suffix for word carefree?

There isn't a commonly used prefix or suffix specifically for "carefree." However, you can create related words by using prefixes and suffixes that convey similar meanings.

Here are some examples:

Prefixes:

* Un-: Unconcerned (meaning lacking concern or worry)

* Non-: Nonchalant (meaning casually unconcerned or indifferent)

* Care-: Careless (meaning lacking care or attention)

Suffixes:

* -ly: Carefreely (adverb form)

* -ness: Carefreeness (noun form, referring to the state of being carefree)

Keep in mind that these words have slightly different nuances than "carefree," but they can be used in similar contexts.