写意 is a term from traditional Chinese aesthetics, originally referring to a freehand, expressive style in Chinese painting (as opposed to 工笔 'meticulous style'). In modern colloquial usage, especially in some dialects, it can mean 'comfortable' or 'enjoyable', but the core cultural meaning is the artistic concept. The word is culturally loaded — English 'freehand' or 'sketchy' doesn't capture the philosophical depth of conveying the spirit (意) through brushwork (写).