"Non assumpsit" is a Latin legal term used in contract law to communicate a denial of an alleged contract or obligation. However, several synonyms can be used to convey a similar meaning. One such synonym is "denied", as it serves to express a refusal or contradiction of the alleged agreement. Another synonym is "disclaimed", which emphasizes the rejection of any responsibility or acknowledgment of the contract. Similarly, "repudiated" conveys the act of rejecting or renouncing the purported agreement. On the other hand, one can use "refuted" to indicate the act of disproving or countering the existence of the contract. Ultimately, these synonyms serve as alternatives to effectively convey the negation of an alleged contractual commitment.