A feeling that encapsulates at least 3 of the following: boredom, the blahs, lethargy, apathy, lazy, tired, stagnation, stalemate. The will to live and firnasement are mutually exclusive.
Students in a lecture theater are often firnased. If you sit at the front and halfway through the lecture look back at your fellow classmates, they will all have a firnased expression on their faces. If the lecture is particularly bad, they will be uber-nased. Firnisation also often occurs in student apartments where the laundry is undone, nothing tasty is in the fridge, homework is plentiful, and will to live gradually fading. Vegetables that go out of date or expire can also be firnased.