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
Seen and Heard
What made you want to look up unleavened? Please tell us where you read or heard it (including the quote, if possible).