All 6 Uses

senile
in
The Sunlight Dialogues
(Auto-generated)

Only later would he realize that he was afraid, that moment, that he was seeing his father's first lapse into real senility.†
Chpt 3 *

senility = mental weakness caused by old age
We look up at them out of our yellow-eyed, senile ignorance, reduced to wrinkled, toothless elders, smiling, waving at their brassy youth with pleasure like a kid's: Hi hi.†
Chpt 5

senile = mental weakness caused by old age; or describing a medical condition as caused by old age
Suppose it were Miss Octave's senile joke, and Esther sat facing an empty chair, or a china statue?†
Chpt 6
Perhaps simply this: sitting in Clumly's office, soberly reasoning with a half-senile country cop on a case that would never have come up in a city like Buffalo, he had felt a burst of pleasure in his having escaped all that, having fled that cave of miscalculation and inevitable embarrassment that had once been his prison—the discomfiture summed up for him in his partnership with a small-town, old-fashioned attorney, Will Hodge Sr. It was almost frightening, when you thought about it.†
Chpt 8
And it's not my fault that the Chief of Police is a half-senile old coot who's got no more business in his job than a scarecrow's got in church.†
Chpt 13
You begin to shrink back from thought-life has bombed you, and you flee forward to the unconsciousness of senility.†
Chpt 19

senility = mental weakness caused by old age

Definitions:

(1) (senile)
weakness from old age (especially mental weakness); or describing a medical condition as caused by old age
(2) (meaning too rare to warrant focus)