Mid-Life Crisis Wikipedia definition Here’s the Wikipedia definition of Mid-Life Crisis. https://en.wikipedia.org/wiki/Mid-life_crisis Further justification, in my opinion, that a mid-life celebration beats a mid-life crisis any day of the week. By jeff noel Retired Disney Institute Keynote Speaker and Prolific Blogger. Five daily, differently-themed personal blogs (about life's 5 big choices) on five interconnected sites. View all of jeff noel's posts.