'Ruò jí ruò lí' (若即若离) is a classical four-character idiom describing a relationship or connection that is simultaneously close and distant — neither fully intimate nor completely detached. Literally, 'ruò' means 'as if' or 'seemingly'; 'jí' means 'to approach' or 'to be near'; 'lí' means 'to depart' or 'to separate'. So the phrase paints a vivid image of someone or something hovering at the threshold of closeness and distance, like a flickering flame — present but untouchable, engaged yet reserved.

This idiom is most commonly used to describe emotional ambiguity in interpersonal relationships: romantic partners who avoid commitment, friends who stay in contact sporadically, or even abstract things like elusive opportunities or half-understood ideas. It carries a subtle, often slightly melancholy or sophisticated tone — not neutral, but evocative of complexity and restraint. It’s frequently found in literature, film reviews, and psychological descriptions, rarely in casual speech.