assertively
US /əˈsɝː.t̬ɪv.li/
UK /əˈsɝː.t̬ɪv.li/

1.
assertief, zelfverzekerd, beslist
in a confident and forceful manner
:
•
She spoke assertively about her rights.
Ze sprak assertief over haar rechten.
•
He assertively stated his opinion.
Hij verklaarde assertief zijn mening.