unassertive — confidently aggressive or self-assured; positive: aggressive; dogmatic: He is too assertive as a salesman.
rabbity — any of several soft-furred, large-eared, rodentlike burrowing mammals of the family Leporidae, allied with the hares and pikas in the order Lagomorpha, having a divided upper lip and long hind legs, usually smaller than the hares and mainly distinguished from them by bearing blind and furless young in nests rather than fully developed young in the open.
diffident — lacking confidence in one's own ability, worth, or fitness; timid; shy.
poised — (of a person) composed, dignified, and self-assured.
unassured — guaranteed; sure; certain; secure: an assured income.
