Accordancy is a somewhat rare word in modern usage, and synonyms for it may be equally unfamiliar. A possible synonym for accordancy is conformity, meaning a state of compliance or agreement. Similar in meaning is congruence, the quality of being in agreement or harmony, or consistency which suggests the absence of conflict or contradiction. Other potential synonyms for accordancy include concord, which implies a sense of peace or unanimity, and conformity, which suggests strict adherence to a set of rules or principles. Other words which may be used as synonyms for accordancy include accordance, compliance, consistency, and unity.