forgetfulness

nouns

tendency to forget
is derived from
is a type of (narrower)
partial or total loss of memory
"he has a total blackout for events of the evening"
unawareness caused by neglectful or heedless failure to remember
"his forgetfulness increased as he grew older"
is derived from
is derived from
is a type of (narrower)
unconsciousness resulting from lack of knowledge or attention