unwarranted

a. 无根据的

An unwarranted fee, such as one extorted from a new prisoner by a jailer.

勒索的金钱一笔不正当的费用，如看守向新囚犯勒索

Boastful, unwarranted pride in one's accomplishments or qualities.

极度自负自负的，对某人的成绩或品德无保证地自负的