the sunny side of (an age)

the sunny side of (an age)

Just a little bit younger than a landmark age, such as 20, 30, 40, etc. The thriller centers on a young journalist on the sunny side of 30 discovering the treacherous world of politics in Washington, D.C. What would you know about a business like this? You're still on the sunny side of 20!
See also: of, side, sunny