If you say that someone is a ~, you think that they are unfriendly and unemotional.
N-SING disapproval
If you say that someone is a ~, you think that they are unfriendly and unemotional.
N-SING disapproval
Collins COBUILD. Толковый словарь английского языка для изучающих язык Коллинз COBUILD (международная база данных языков Бирмингемского университета) . 2012