ephemeral (adjective) 

Something that’s ephemeral (ih-FEH-mer-uhl) is fleeting or short-lived. As I used it today: “You may have heard the argument that people generally get more long-term pleasure out of spending money on experiences rather than things. The first time I heard it, I was repelled by it. It seemed illogical. Experiences are ephemeral, I had always believed. You have them and they are gone. Poof! But things – ah, things last!”