Geeky, smartalecky... if you get my drift. People think that charming ones are there to same the day. Well geeks, nerds, and others in that category most people don't consider charming. If you mean personality wise, smartalecks, wiseguys and the "Popular Clique."
or: Offensive, unattractive, repulsive
The antonym of obnoxious (unpleasant, bothersome) would be amiable, agreeable, or pleasant, or (to a greater extent) charming, captivating.agreeable, charming, kind
more charming (comparative) most charming (superlative)
he was very charming to me !
More charming
Verb
a princess?
It is called rococo. The opposite is Baroque.
The antonym of obnoxious (unpleasant, bothersome) would be amiable, agreeable, or pleasant, or (to a greater extent) charming, captivating.agreeable, charming, kind
On the upside, it will make you socially desirable and may advance you in business. On the downside , being TOO charming may make some people think you are after something, or may draw more attention from the opposite sex than you want. It a fine line you walk when you are deliberately charming.
The superlative of charming is "most charming."
more charming (comparative) most charming (superlative)
be charming
Charming
I would use the word, "Disgusting", but others may have different words. Frightening, terrifying, irritating, repulsive, offensive, repulsing, repellent...
he was very charming to me !
More charming
He did not have an official name. His name was Prince Charming.