形容词
及物动词
1. （人因缺乏锻炼而）不健康的，不强健的
If you are unfit, your body is not in good condition because you have not been taking regular exercise.
2. （人因伤病而）不适宜的
If someone is unfit for something, he or she is unable to do it because of injury or illness.
3. 不合适的；不合格的；不胜任的
If you say that someone or something is unfit for a particular purpose or job, you are criticizing them because they are not good enough for that purpose or job.