Definition of senility
: the quality or state of being senile : the physical and mental decline associated with old age; especially : the deterioration of cognitive functioning associated with old age
Examples of senility in a sentence
with his increasing senility, Granddad is beginning to have more and more senior moments
Recent Examples of senility from the web
André’s ego is too large and impregnable to be deflated by senility.
I was inclined to dismiss his fractious behavior as the first sign of senility.
Few ideas in biology have been more fixed than the doctrine that people are born with a finite number of brain cells and go downhill from there, neuronwise, all the way to senility.
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First Known Use of senility
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