unassertive

adjectives

inclined to timidity or lack of self-confidence
"a shy unassertive person"
unassertive
is derived from
unassertiveness
antonym
assertive
is similar to
not aggressively self-assured, though not necessarily lacking in confidence
"she was quiet and nonassertive as she took control"
nonassertive
is similar to
reluctant to draw attention to yourself
reticent, retiring, self-effacing
see also
not aggressive; not given to fighting or assertiveness
nonaggressive, unaggressive
see also
showing fear and lack of confidence
timid
see also
inclined or willing to submit to orders or wishes of others or showing such inclination
"submissive servants"; "a submissive reply"; "replacing troublemakers with more submissive people"
submissive