Synonyms of forgetful

Adjective

1. unretentive (vs. retentive), forgetful, short, unmindful#1, forgetful#2, mindless

usage: (of memory) deficient in retentiveness or range; "a short memory"

2. unmindful (vs. mindful), forgetful, mindless, amnesic, amnesiac

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

3. forgetful, oblivious, inattentive (vs. attentive)

usage: failing to keep in mind; "forgetful of her responsibilities"; "oblivious old age"

Definition and meaning of forgetful (Dictionary)