in·cog·ni·zant /(ˌ)ɪnˈkɑgnəzənt/
(a.)不認識,無意識的,不知覺的
In·cog·ni·zant a. Not cognizant; failing to apprehended or notice.
Of the several operations themselves, as acts of volition, we are wholly incognizant. --Sir W. Hamilton.
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incognizant
adj : (often followed by `of') lacking knowledge or awareness;
"incognizant of the new political situation" [syn: unaware]
[ant: cognizant]