無む発はっ酵こうパンMeanings1noununleavened breadfood / cookingBread made without yeast or other leavening agents; used in religious and dietary contexts. The cross-reference 種無しパン is a synonym.See also: 種無しパン過すぎ越こし祭まつりでは無む発はっ酵こうパンを食たべる。Unleavened bread is eaten during Passover.