To stabilize something is to make it stable or consistent. When you stabilize the economy, you make it so that the economy doesn't fluctuate a lot.
Outwards refers to the direction that something is pointing or moving. The outward appearance of something is usually how we first perceive it.
There are always some downsides to anything. When you're looking at a new job, you'll probably hear about the downsides of the job as well.
To evaporate is to disappear or to turn into vapor. When you evaporate water, it turns into steam and water vapor.
When something is unrecognizable, it is so different from the way that it used to be that you can't really identify it.
A lightyear is a unit of distance that is used in astronomy. It's about the distance that it takes for light to travel one year.
The timespan is the amount of time that it takes for something to happen. It can be measured in minutes, hours, or days.
Obscenely is a very strong word. It can only be used when something is really offensive and inappropriate.