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 (sē′nīl′, sĕn′īl′)
a. Relating to or having diminished cognitive function, as when memory is impaired, because of old age.
b. Being a disease or condition whose cause is primarily advanced age: senile cataracts.
2. Geology At the end of an erosion cycle: senile soil.

[Latin senīlis, proper to or characteristic of old people, aged, from senex, sen-, old; see sen- in Indo-European roots.]

se′nile′ly adv.
se·nil′i·ty (sĭ-nĭl′ĭ-tē) n.


(sɪˈnɪl ɪ ti)

the state of being senile, esp. the weakness or mental infirmity of old age.


1. the state or quality of being old, especially, being afflicted with the infirmity of body and mind that sometimes comes with old age.
2. Informal. a condition of weakness of mind and body, usually associated with advanced age, characterized by the inability to remember simple, recent events, general confusion and bewilderment, and increasing debility. Cf. anility.senile, adj.
See also: Old Age
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.senility - mental infirmity as a consequence of old age; sometimes shown by foolish infatuations
eld, geezerhood, old age, years, age - a late time of life; "old age is not for sissies"; "he's showing his years"; "age hasn't slowed him down at all"; "a beard white with eld"; "on the brink of geezerhood"
2.senility - the state of being senile
oldness - the opposite of youngness


noun dotage, Alzheimer's disease, infirmity, senile dementia, decrepitude, senescence, second childhood, caducity, loss of your faculties He was showing unmistakable signs of senility.


The condition of being senile:
شَيْخوخَه، هَرَم، خَرَف
ellihrumleiki; elli


[sɪˈnɪlɪtɪ] Nsenilidad f


[sɪˈnɪləti] nsénilité f


nSenilität f; (physical) → Altersschwäche f


[sɪˈnɪlɪtɪ] nsenilità


(ˈsiːnail) adjective
showing the feebleness or childishness of old age. a senile old woman.
seˈnility (səˈni-) noun


n. senilidad, cualidad de ser senil.
References in classic literature ?
He made a slight motion to me to approach him, and instantly, as he turned his face half round to the company once more, subsided into a doddering, loose-lipped senility.
There was something childish in those eyes, though it was not the childishness of senility.
From infancy to senility the fingerprints of an individual change only in size, except as injuries alter the loops and whorls.
He showed marked signs of senility by a tendency to fall asleep, forgetfulness of quite recent events, remembrance of remote ones, and the childish vanity with which he accepted the role of head of the Moscow opposition.
Ebbits seemed sinking back into his senility with the tale untold, and I demanded:
The stream moved slowly, while from it arose groans and lamentations, cursings, babblings of senility, hysteria, and insanity; for these were the very young and the very old, the feeble and the sick, the helpless and the hopeless, all the wreckage of the ghetto.
One eye, of normal size, dim-brown and misty, bulged to the verge of popping out, and as if from senility wept copiously and continuously.
Lot 1: truck crossings increased capacitance, senility.
Tumours - both benign and malignant - arthritis, dental decay, kidney disease, allergies and senility - these are among the most common problems that afflict senior dogs and cats in the UAE, a special meet on ageing pets has revealed.
Norman Walker, in his book Colon Health, reiterated that a short series of colonics twice a year prevents senility at any age.
The singer, 58, said: "If I felt senility was coming in, then euthanasia would be highly popular in my head.
It could be he is experiencing a little senility and is confused from time to time.