I really don't want to get into a pointless debate over prescriptivism, and there is no other kind of debate over prescriptivism. But, here, have some authorities:

Wiktionary: https://en.wiktionary.org/wiki/antisocial

Merriam-Webster: https://www.merriam-webster.com/dictionary/antisocial

Oxford Dictionaries, English - as close as you get to OED without paying, and my library card's at home: https://en.oxforddictionaries.com/definition/antisocial

How many more would you like me to cite? And what's your problem with "poignant"?