also: かっこうのいい · かっこうのよい · かっこいい
expression, i-adjective (yoi/ii class)
attractive; good-looking; stylish; cool
Describes a person, appearance, or thing that is visually appealing, fashionable, or impressive in a modern sense. Often used casually.
彼は格好いい車に乗っている。
He drives a cool car.
あの俳優は本当に格好いい。
That actor is really good-looking.
From 格好 (appearance) + いい (good). The の is a possessive particle linking the noun and adjective, but it is often omitted in modern casual usage.