inertiatic 

Taken from The Mars Volta album "De-Loused From The Comatorium" and linked to the word Inertia (the feeling of not being able to do anything, like there's no will to do anything). Possibly the way you are feeling at the time.

"Dude.. I dunno.. I've just been feeling really inertiatic lately.. Like, I won't even get up in the morning.."

inertiatic by ceilingofmyhead July 26, 2005

inertiative 

An obnoxious contraction of "inertia" and "initiative". Together, they combine to mean 'taking the lead in doing the same thing we were doing before'.

Matt wants to get some dinner, but Brian took the inertiative and hasn't moved from the couch.

inertiative by branden January 6, 2006

inertialize 

1. To motivate a person or group such that they actually take action.

2. To create inertia in a person or group.

3. To kick someone in the pants -- successfully.

Ex 1: "No one wants to be the first person to buy tickets for this event. Looks like I'm going to have to inertialize."

inertialize by da jiang shi October 30, 2012