As in "Existential Crisis"

Every year various dictionaries announce their word of the year – usually a word that was frequently used and that also enjoyed high search traffic. Usually, it’s a word that captures the zeitgeist of the time.

This year, Dictionary.com does not disappoint in crowning “existential” as their Word of the Year for 2019. “Notable among searches was existential,” notes the lexicographers. “It captures a sense of grappling with the survival – literally and figuratively – of our planet, our loved ones, our ways of life.”  ---  treehugger

I remember when this was the image of existential.  It was just about being cool and slightly French, but in an American way.  Now it's about the existence of the planet.  Not cool.