unleavened
/ˌʌnˈleɪvɪnd/Definitions
1. adjective
containing no leaven, such as yeast or baking powder, and therefore flat or unleavened bread
“The Jewish family followed the traditional recipe for unleavened bread during Passover.”
2. noun
unleavened bread, especially of Jewish origin
“They served unleavened bread at the Seder table.”