"unmindful" in the adjective sense
1. unmindful, forgetful, mindless
not mindful or attentive
"while thus unmindful of his steps he stumbled"- G.B.Shaw
2. oblivious, unmindful
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"
Source: WordNet® (An amazing lexical database of English)
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