名詞 forgetfulness:

1. tendency to forget
2. unawareness caused by neglectful or heedless failure to remember

1. A condition of forgetfulness; oblivion.
   忘卻、遺忘忘卻、遺忘的狀態(tài); 遺忘
2. Please pardon my forgetfulness.
   請原諒我這么健忘。
3. I am really angry about your forgetfulness.
   你這么健忘，我的確很生氣。
4. You should forgive him for his forgetfulness; after all, he is over seventy.
   你應該原諒他的健忘癥，畢竟他已經七十多歲了。