Search Result for "nonassertive": 
Wordnet 3.0

ADJECTIVE (1)

1. not aggressively self-assured, though not necessarily lacking in confidence;
- Example: "she was quiet and nonassertive as she took control"



WordNet (r) 3.0 (2006):

nonassertive
    adj 1: not aggressively self-assured, though not necessarily
           lacking in confidence; "she was quiet and nonassertive as
           she took control"