incisively

adverb
1
in a way that shows clear thought and good understanding of what is important, and an ability to express this
به طور نافذ, با درک بالا, به شکلی تیزهوشانه
2
in a way that shows an ability to take decisions and act with force
به صورت قاطعانه, به طور قاطع
They acted quickly and incisively to deal with the problem.