The antonyms for the word "more contractual" can vary depending on the context of its use. However, some possible antonyms to this phrase may be "less binding," "informal," "unregulated," "imprecise," "flexible," "loosely defined," "non-legal," or "non-binding." These words connote a lack of strictness or formality and suggest an absence of legal control. In contrast, "more contractual" implies greater regulation, accountability, and legal scrutiny. For example, a contract that is "less binding" may provide more room for negotiation and compromise, while a contract that is "more contractual" emphasizes a higher level of precision and legal obligations.