She was quiet and nonassertive as she took control.    From Wordnet, Princeton University. 

Adjective : He is too assertive as a salesman.    From Dictionary.com. 

You may have a long history of being very nonassertive.    From Wordnik.com.  [Control Your Depression] Reference

You are currently handling the situation in a nonassertive manner.    From Wordnik.com.  [Control Your Depression] Reference

A 0 rating indicates a totally unsatisfactory performance you were completely uncomfortable, or you were com pletely nonassertive.    From Wordnik.com.  [Control Your Depression] Reference

Clients are instructed to observe and record in a notebook the assertive, nonassertive, and aggressive actions they encounter among their friends and associates.    From Wordnik.com.  [Planned Short-Term Treatment] Reference

This case illustrates how the development of an individualized hierarchy for each client guards against a common clinical error in working with the nonassertive.    From Wordnik.com.  [Planned Short-Term Treatment] Reference

At a beginning level trainees are encouraged to use the personal pronoun “I” in stating a request or denial, rather than the impersonal phrasings typically employed by the nonassertive person.    From Wordnik.com.  [Planned Short-Term Treatment] Reference

If he were to win the Presidency and essentially be as nonassertive and bland as his campaign (which I think his platform portends) everyone whose hopes were raised by his candidacy will be completely disheartened.    From Wordnik.com.  [Obama: Hope And Change Are "The Causes Of My Life"] Reference

The girls have different reactions to the guy's advances - assertive, nonassertive and aggressive.    From Wordnik.com.  [Daily News-Record] Reference

The impact of this seemingly nonassertive language is such that the Federal Drug Administration has recently banned the "No Cholesterol" label on foods that never had cholesterol anyway.    From Wordnik.com.  [VERBATIM: The Language Quarterly Vol XVIII No 2] Reference

That's a more nonassertive way to do it.    From Wordnik.com.  [All of One Peace: Essays on Nonviolence] Reference