non-assertive

adjective

1. confidently aggressive or self-assured; positive: aggressive; dogmatic: He is too assertive as a salesman.
2. having a distinctive or pronounced taste or aroma.

adjective

1. confident and direct in claiming one’s rights or putting forward one’s views
2. given to making assertions or bold demands; dogmatic or aggressive

adj.1560s, “declaratory, positive, full of assertion,” from assert + -ive. Meaning “insisting on one’s rights” is short for self-assertive (1865).