Definition of unleavened
: made without leaven : (such as yeast or baking powder) : not leavened <unleavened bread> <Literally “little cakes,” tortillas are flat, unleavened rounds that can be made from either corn or wheat flour. — Gourmet Magazine> < … a sober, serious chronicle unleavened by much imagination … or writerly flair … — John Rockwell>
First Known Use of unleavened
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