Unleavened

Matzo, an unleavened bread, is eaten during Passover.

Source: tatoeba (5011291)

The flatbread, likely unleavened and somewhat resembling pita bread, was fashioned from wild cereals such as barley, einkorn or oats, as well as tubers from an aquatic papyrus relative, that had been ground into flour.

Source: tatoeba (7000283)

He pressed them very much to turn in unto him: and when they were come into his house, he made them a feast, and baked unleavened bread, and they ate:

Source: tatoeba (7858709)

And they shall take of the blood thereof, and put it upon both the side posts, and on the upper door posts of the houses, wherein they shall eat it. And they shall eat the flesh that night roasted at the fire, and unleavened bread with wild lettuce.

Source: tatoeba (8006437)