'Forgetful' definitions:

Definition of 'forgetful'

From: WordNet
adjective
(of memory) deficient in retentiveness or range; "a short memory" [syn: unretentive, forgetful, short] [ant: long, recollective, retentive, tenacious]
adjective
Not mindful or attentive; "while thus unmindful of his steps he stumbled"- G.B.Shaw [syn: unmindful, forgetful, mindless] [ant: aware, mindful]
adjective
Failing to keep in mind; "forgetful of her responsibilities"; "oblivious old age" [syn: forgetful, oblivious]

Definition of 'Forgetful'

From: GCIDE
  • Forgetful \For*get"ful\, a.
  • 1. Apt to forget; easily losing remembrance; as, a forgetful man should use helps to strengthen his memory. [1913 Webster]
  • 2. Heedless; careless; neglectful; inattentive. [1913 Webster]
  • Be not forgetful to entertain strangers. --Heb. xiii. 2. [1913 Webster]
  • 3. Causing to forget; inducing oblivion; oblivious. [Archaic or Poetic] "The forgetful wine." --J. Webster. [1913 Webster]