Discarding, eliminating, disposing of, removing...
"Riddance" is the act of getting rid of something troublesome. It is always used to refer to the removal of something unpleasant, unwanted and undesirable.
In "disposal," "dis" is a prefix that means "to get rid of" or "to remove." So, disposal refers to the act of getting rid of or discarding something that is no longer needed.
The verb form of "disposable" is "dispose." It means to get rid of something or to arrange or deal with something in a particular way. The noun form, related to the concept of disposal, is "disposal," which refers to the act of throwing away or getting rid of something.
To be rid of something is to no longer have it, the connotation being that it was something you didn't particularly want to have, like a fungal infection or an unpleasant nickname. "Riddance" is the act of being rid of something, the noun form of the word. The addition of the word "good" strengthens the idea that getting rid of whatever it was is a good thing.
Your temper
Throwing it out
A mass killing of people for a political reason
a word that means that question is "thow out"
letting it be known usually to someone specific
Disposal refers to getting rid of, settling, doing away with something.
Not necessarily cursing as such. It is the act in getting rid of pent up anger that relieves stress for many.