A narcissistic asshole pardon the expletive
characteristics of a narcissist:
- They also use projection to dump shame onto others.
- A narcissist who is feeling deflated may reinflate by diminishing, debasing, or degrading somebody else.
A narcissist may secure a sense of superiority in the face of another person's ability by using contempt to minimize the other
person.
Narcissists hold unreasonable expectations of particularly favorable treatment and automatic compliance because they consider
themselves special. Failure to comply is considered an attack on their
superiority, and the perpetrator is considered an "awkward" or
"difficult" person. Defiance of their will is a narcissistic injury
that can trigger narcissistic rage.
Can take many forms but always involves the exploitation of others without regard for their feelings or interests.
Narcissists do not recognize that they have boundaries and that others are separate and are not extensions of themselves. Others
either exist to meet their needs or may as well not exist at all.
Asshole:
If you call someone an asshole, they're probably doing something not just stupid and annoying, but mean.
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a stupid, mean, or contemptible person.
I like all the other answers here +1;
yes, mean, spiteful, antagonistic (as opposed to the antagonist within a storyline), sly, treacherous, malicious, catty, are all words I reserve for this type of person. I believe scheming is applicable, as scheming usually has pejorative implications.
I like shit stirrer and trouble-maker, however they need some more adjectives to give emphasis of how puerile, devious, underhanded, destructive, nasty, bitter, and horrible such low-lifes truly are.
Side note
Where I live calling someone a shit stirrer, can be a form of compliment.. don't ask, we Aussies can use insults to express affection.. as an affectionate term; calling someone a shit stirrer, is meaning they've successfully upset someone, who "deserves" it..