un·health·y/ʌn`hɛlθɪ; ʌnˈhelθi/ adj 1 likely to make you ill or less healthy 对健康有害的,不卫生的: an unhealthy diet 有碍健康的饮食 2 not healthy 不健康的,身体不好的: a rather unhealthy looking child 看上去病得很重的孩子 3 not normal or natural and likely to be harmful 反常的,病态的: an unhealthy obsession with sex 对性的病态沉迷