this side of something idiom mainly UK
不到（某年龄）;在（某日期）之前;在（某地方）之外
before reaching a particular age, date, place, etc.
I can't believe she's this side of 50. 我无法相信她还不到50岁。
We don't expect to see Gideon this side of Christmas. 我们不指望在圣诞节前见到吉迪恩。
This is the best pizza I've eaten this side of (= anywhere other than) Rome. 这是我在罗马以外的地方吃到的最好的比萨饼。
Parenting is the most rewarding thing I will do this side of the grave (= in life). 为人父母将是我一生中最值得一做的事。