平日人声鼎沸的地方空无一人时，那股怪异的冷清——放学后的走廊，周日夜里没开灯的办公室。 The eerie, forlorn atmosphere of a place that's usually bustling with people but is now abandoned and quiet.
The eerie, forlorn atmosphere of a place that's usually bustling with people but is now abandoned and quiet. 平日人声鼎沸的地方空无一人时，那股怪异的冷清——放学后的走廊，周日夜里没开灯的办公室。
词源etymology
希腊语 kenós（空）＋ -opsia（视觉，取自 myopia 一类眼科词的尾巴）——「看见空」。 不是空无一物的空，是本该有人的空。
Greek kenós (empty) + -opsia (sight, the ophthalmic suffix of myopia and its kin) — “the seeing of empty.” Not the emptiness of nothing, but the emptiness where people belong.
背景the story
《晦涩悲伤词典》原帖发布于 2012 年 10 月 17 日。
它后来成了一整个互联网美学的名字：liminal spaces——空教室、停业的商场、凌晨的机场， 那类照片下面总有人留言「kenopsia」。一个 2012 年的造词，赶上了 2020 年代的空旷。词典未收。
The Dictionary of Obscure Sorrows post ran on 17 October 2012.
It went on to caption an entire internet aesthetic — liminal spaces: empty classrooms, dead malls, airports at 4 a.m. Under those photographs, someone always comments “kenopsia.” A 2012 coinage that met the emptied-out 2020s right on time. Not in any dictionary.
中文里的邻居neighbors in chinese
「人去楼空」几乎就是它——但那是陈述事实：人走了，楼空了。 kenopsia 说的是那股扑面而来的氛围，是空房间里还残留的人声余温。 「曲终人散」有那份怅然，可它站在散场的时刻；kenopsia 是你散场后又回来了。
人去楼空 (“the people gone, the building empty”) is nearly it — but it states a fact. kenopsia names the atmosphere that hits you: the residual warmth of voices in an emptied room. 曲终人散 has the wistfulness, but it stands at the moment of dispersal; kenopsia is you, coming back after.
He came back for his umbrella at nine and the school had gone full kenopsia — chairs upturned, one flickering light, the hallway longer than in daylight. 自拟例句 our own example, not a quotation Airport kenopsia is its own genre — four a.m., every gate lit and nobody anywhere. 自拟例句 our own example, not a quotation The mall's last week of business was pure kenopsia in slow motion. 自拟例句 our own example, not a quotation 不在词典中。 非正式与创意写作；拍照片写图注，它正当年。
Not in any dictionary. Informal and creative writing; as a photo caption, it is exactly in season.