unmindful

英 [ʌn'maɪn(d)fʊl; -f(ə)l] 美[ʌn'maɪndfəl]

1. not mindful or attentive;: "while thus unmindful of his steps he stumbled"- G.B.Shaw

2. (followed by `to' or `of') lacking conscious awareness of;: "oblivious of the mounting pressures for political reform"; "oblivious to the risks she ran"; "not unmindful of the heavy responsibility"