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
Your 18-year-old cat could have health problems resulting in pain or could have a cognitive dysfunction, like senility or dementia.
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.
These example sentences are selected automatically from various online news sources to reflect current usage of the word 'senility.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.
First Known Use of senility
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