What does the word senile mean?

Usage examples for senile

  1. Spinola, as acute a politician as he was a brilliant commander, at once demonstrated to his Government the impotence of such senile attempts. – Project Gutenberg History of The Netherlands, 1555-1623, Complete by John Lothrop Motley
  2. And he continued to fuss and chat, with that curious mixture of native shrewdness and senile interest in little things which he thought most likely to impress the woman attending him, and trap her into giving him the complete address. – The Mystery of the Hasty Arrow by Anna Katharine Green
  3. His voice continued in what Taj Lamor thought of as a senile drone, but the younger man paid scant attention. – The Black Star Passes by John W Campbell