Noun
the time of life between 30 and 40
Source: WordNetIf the era of political irresponsibility in France lasted from 1918 to 1958, the age of moral irresponsibility may be said to have begun in the mid-thirties and endured for the best part of four decades. Tony Judt
The mustache - I was never happy with the fullness of it. I was a bit too young. Maybe I'll bring it back in my mid-thirties. Brandon Flowers
Your mid-thirties is a good time because you know a fair amount, you have some self-control. Zadie Smith
In contrast, a female's libido increases slowly during adolescence and peaks in her mid-thirties. Source: Internet
By the age of twenty I had read everything available on Malta, and when I went into the stamp business in my mid-thirties, I named my business Maltalately, or Malta philately. Source: Internet
In the mid-thirties she made several trips to the Balkans in order to gather material for a travel book. Source: Internet