Darkly inclined refers to someone who follows a darker or spookier lifestyle, but isn't necessarily goth. Interests can include Tim Burton, Gothic literature or anything that creates a darker atmosphere, Halloween, music of a generally darker style and dressing alternative/darker fashion styles. Members of other subcultures can be darkly inclined, like metalheads.
Goth pertains to someone who listens to goth music, including genres such as goth rock, death rock, post-punk, gothabilly, cold wave and dark wave (e.g. ethereal wave and neoclassical). It does not describe "anyone dark", it has a specific definition.
Goths can be darkly inclined, but it's not a requirement by definition of the subculture. Some darkly inclined people can even discover goth music and become part of the subculture, too. It doesn't always have to work hand in hand, but it can.
One's desire, reason, or drive to do something. Often can be used in the case where one would want a "reimbursement" for his or her actions. I.E. Incentive.
Inclination: example.
Abby: Say, could you drop by my house and give Steve and I a ride to the movies? I don't have a car and his is in the shop.
James: I'm not exactly inclined to do that, seeing as you just dumped me this morning. Later, bitch!
When someone does or says something incredibly inconceivable and its devoid of any/all logic, and you wonder how they have managed to survive life this long
C: "A severe hurricane is coming Friday, make sure your homes are prepared."
J: "I was scheduled to work Friday, what should I do about my timesheet?"
C: "Oh, just come in early that morning and we will find out whats going on."
T: "WOW! Thats the most incraigable decision by a supervisor ever!"