Of, or relating to old age. / (often offensive) Exhibiting the deterioration in mind and body often accompanying old age; doddering.

(dated, medicine) A person who is senile.

plural of senile

In a senile manner.

(chiefly uncountable) Senescence; the bodily and mental deterioration associated with old age. / (chiefly uncountable) The losing of memory and reason due to senescence.

plural of senility

present participle of senilize

Third-person singular simple present indicative form of senilize

(dated, transitive) To advance in time of life.

simple past tense and past participle of senilize