antimated
A very dull and boring person.
That guy is so antimated, I can't concentrate when he's talking to me because I am so bored.
Antimate
A bad friend, someone stabbing you in the back in public, highlighting negative sides about your character or just a douche.
On IRC.
#1: THERES PORN ON THAT LINK YOU GAVE ME
#2: So?
#3: Some people have problems with intimacy
#1: I googled that word, intimate or whatever
#2: You didn't know what intimate means?
Person #2 would be the Antimate in this case, highlighting the fact that #1 did not know the meaning of intimacy.
#1: THERES PORN ON THAT LINK YOU GAVE ME
#2: So?
#3: Some people have problems with intimacy
#1: I googled that word, intimate or whatever
#2: You didn't know what intimate means?
Person #2 would be the Antimate in this case, highlighting the fact that #1 did not know the meaning of intimacy.
Antimate
One who has an inability to get laid.
My roommate really is an antimate.