senile
🇺🇸
/ˈsiːnaɪl/
🇬🇧
/ˈsiːnaɪl/
acting in a confused way or unable to remember things because of old age
My senile dog sometimes walks into walls.
私の老犬は時々壁に歩いて入ります。
related to becoming weak or ill because of old age
She worries about getting senile diseases.
彼女は老化疾患を心配しています。