Английский разговорный словарь (основной) - senile
Senile
senile
ˈsi:naɪl adj. & n. --adj. 1 of or characteristic of oldage (senile apathy; senile decay). 2 having the weaknesses or diseases of old age. --n. a senile person. øøsenility n. [F s÷nile or L senilis f. senex old man]