The phrase "on easy terms" can often be used to describe a transaction or agreement that is favorable or accommodating to one party. Some synonyms for this phrase might include "leniently," "generously," "flexibly," "amenable," or "accommodatingly." These words all imply a sense of ease or understanding in a negotiation or transaction, with little resistance or conflict. Other similar phrases might include "with a light touch," "without any fuss," or "with a friendly approach." Overall, these synonyms all suggest a positive and agreeable experience in any given deal or agreement.