Definition of "passé"

I never thought you'd be a junkie, because heroin is so passé.

1997, Courtney Taylor-Taylor (lyrics and music), “Not If You Were the Last Junkie on Earth”, performed by The Dandy Warhols

We'll paint the town blue 'cause, baby, red is so passé.

2007, “Turn On Billie”, performed by The Pierces

It is perhaps inevitable that a movement that was the height of fashion in the last decade would start to seem passé in this one. That’s how style works; the young and innovative distinguish themselves by breaking with the conventions of their predecessors.

2022 June 17, Michelle Goldberg, “The Future Isn’t Female Anymore”, in The New York Times‎

Then, like side fringes, Smirnoff Ice and tights under denim shorts, smoking was suddenly passé – distasteful, even gross.

2023 June 16, Daisy Jones, “Cool, sexy and stinking of smoke: why are TV dramas giving cigarettes a comeback?”, in The Guardian‎

The coaching stock is in general in a very passé condition, but the ex-royal saloon, though needing a coat of paint outside, as another photograph shows, is spotless inside.

1939 November, “Pertinent Paragraphs: The Shropshire & Montgomeryshire Light Railway”, in Railway Magazine, page 357