The term "free-and-easy" implies an informal, relaxed or carefree approach. However, its antonyms promote a contrary style of behavior. An opposite of free-and-easy could be strict or unyielding, rigid or formal. It could also mean constrained, regulated or structured. A strict framework or strict guidelines could be used to describe a situation where one is not free-and-easy. In contrast, another antonym might be uptight or anxious. This would imply that a person feeling stress or tension is less likely to feel free-and-easy. In summary, whereas the term "more free-and-easy" is associated with a casual or laid-back approach, its antonyms are closer to restrained or anxious behavior.