indecency/-nsɪ; -nsɪ/ n1 [U] being indecent; indecent behaviour 失礼; 粗鲁; 不体面; 下流; 有伤风化的行为 arrested by the police for gross indecency, eg indecent exposure 因猥亵行为遭警方拘留（如猥亵露体）.2 [C] indecent act, gesture, expression, etc 下流的 动作、 姿势、 表情等.
牛津英汉双解词典