She was called an adulteress by the villagers for having an affair with another man.

adulteress 是由名词 adulterer（通奸者）加上阴性后缀 -ess 构成，专指"女性通奸者"。adulterer 本身来自动词 adulterate（掺假、掺杂），引申为"玷污婚姻纯洁性"的含义。这个词带有强烈的贬义色彩，指"不贞洁的女人"。