adj. 確信的,確實的;有把握的;無疑的;一定的;
adv. 當然;確實地;無疑地;
"Make sure the shelf is aligned with the top of the cupboard."
務必使擱架與櫥柜頂端對齊。
近義:inarguable, incontestable, incontrovertible, indefectible, indisputable, indubitable
反義:hesitant, hesitative, imprecise, improbable, inconclusive, indecisive