Wordnet polsko-angielski 
                         (aggressively self-assured
"an energetic assertive boy who was always ready to argue"
"pointing directly at a listener is an assertive act") 
assertive, self-asserting, self-assertive 
Słownik medyczny polsko-angielski Iwona Kienzler
                        assertive adj
Otwarty słownik polsko-angielski V.9.2007, Copyright (c) Jerzy Kazojć - 2007 r.
                        self-assertive
Nowoczesny słownik polsko-angielski 
                        assertive