The woman in the last apartment down the hall was somewhat of a misanthrope, according to most people in Keira's building. She almost never came out of her apartment, but when she did, she answered hellos with a glare, as if she were being insulted. Keira was sure that she could find a way to get to know the woman, if only she could figure out how to invite herself into the woman's apartment to chat.
Based on inferences, what is the most likely meaning of misanthrope?