形容詞 assertive:

1. inclined to bold and confident assertion; aggressively self-assured
2. confidently aggressive
   同義詞：self-asserting, self-assertive

1. "This is a very courageous, assertive Speaker, who is not unwilling when be identifies something he wants to do to put his reputation on the line, " said Mr. [Jim] Wright's chief lieutenant, Thomas A. Foley, ... "He likes to go out and grab the nettles."
   賴特[議長]麾下主將福萊說，"這是一位非常勇敢、直言不諱的議長，要做的事，即令危及名聲，也在所不辭。"... "他喜歡去做棘手的事。"

as.ser.tive

adj.（形容詞）
Inclined to bold or confident assertion; aggressively self-assured.
過分自信的：傾向于唐突或自信的斷言；過分自信的

【引伸】
asser.tively
adv.（副詞）
asser.tiveness
n.（名詞）