as·ser·tive·ness
noun/əˈsɜːtɪvnəs/
/əˈsɜːrtɪvnəs/
[uncountable]- the quality of expressing opinions or desires in a strong and confident way, so that people take notice
坚定自信的；坚决主张的 - an assertiveness training course
建立自信心训练班
- an assertiveness training course