1. （尤指不好或不受欢迎的状态或情况）持续存在的，继续发生的
Something that is persistent continues to exist or happen for a long time; used especially about bad or undesirable states or situations.

2. 执著的；不屈不挠的；锲而不舍的
Someone who is persistent continues trying to do something, even though it is difficult or other people are against it.