carefree

As a noun taxonomy

is the science or the technique used to make a classification.

As an adjective carefree is

without cares; free of concern or worries; easy; casual; without difficulty.

Happygolucky is likely misspelled.

Happygolucky has no English definition.

As an adjective carefree is

without cares; free of concern or worries; easy; casual; without difficulty.

As adjectives the difference between overbearing and carefree

is that overbearing is overly bossy, domineering, or arrogant while carefree is without cares; free of concern or worries; easy; casual; without difficulty.

As adjectives the difference between carefree and careful

is that carefree is without cares; free of concern or worries; easy; casual; without difficulty while careful is full of care or grief; sorrowful, sad.

As adjectives the difference between carefree and indifferent

is that carefree is without cares; free of concern or worries; easy; casual; without difficulty while indifferent is not caring or concerned; uninterested, apathetic.

As an adverb indifferent is

to some extent, in some degree (intermediate between very and not at all); moderately, tolerably, fairly.

Playsome is a synonym of carefree.

As adjectives the difference between carefree and playsome

is that carefree is without cares; free of concern or worries; easy; casual; without difficulty while playsome is playful; frolicsome.

As an adjective carefree

is without cares; free of concern or worries; easy; casual; without difficulty.

As an adverb carefreely is

in a carefree way.