infatuation

in·fat·u·a·tion | \ in-ˌfa-chə-ˈwā-shən

, -chü-ˈā- \

plural infatuations

Definition of infatuation

1 : a feeling of foolish or obsessively strong love for, admiration for, or interest in someone or something : strong and unreasoning attachment She speaks openly about the real-life subject of one of her songs, a conservatory teacher who is both a neighbor in her apartment building and the unwilling object of her obsessive infatuation.— Sasha Frere-Jones Craig Claiborne wrote about it in 1963, when he was deep in his infatuation with dill and meatballs and all things Nordic.— Amanda Hesser

2 : the object of an unreasoning or foolish attachment And then, I began trying to forge their autographs. I'm not sure why I did it at first, but it became an infatuation.— Zach Selwyn