nonassertive

/ˌnɑnəˈsɜːrtɪv/
adjective
  1. Not confident or forceful in expressing opinions, needs, or desires; tending to be passive or shy.
    • The nonassertive student rarely participated in class discussions.
    • His nonassertive personality made it hard for him to speak up in meetings.
    • She felt too nonassertive to ask for a raise at work.
What does "nonassertive" mean? | whatsthatwordmean | whatsthatwordmean