If 伝統 is "tradition," then adding a 的 (-al) to it would make it traditional.
This is a jukugo word, which usually means on'yomi readings from the kanji. If you know the readings of your kanji you'll know how to read this as well.
Japan has a lot of traditional culture.
This festival is a traditional event, but it now incorporates a modern essence as well.
Kimono are Japan’s traditional attire, and fundoshi are the traditional Japanese underwear for men.