"forgetful" in the adjective sense
1. unretentive, forgetful, short
of memory) deficient in retentiveness or range
"a short memory"
2. unmindful, forgetful, mindless
not mindful or attentive
"while thus unmindful of his steps he stumbled"- G.B.Shaw
3. forgetful, oblivious
failing to keep in mind
"forgetful of her responsibilities"
"oblivious old age"
Source: WordNet® (An amazing lexical database of English)
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