Earnestness (n.): A state of being utterly, completely, and totally earnest. Like, 100% earnest.
Example: "You're being really earnest about eating that entire pizza by yourself? That's just not earningest." - Professor Punsley
Counter-Earnestness, the art of being slightly less earnest, is not to be confused with mere apathy.
Want to learn more about Earnestness? Check out the Earnestness Philosophy.