Hang-tight is a perfect antonym for the term "more hang-loose". Hang-tight means to become cautious, alert or vigilant. When we utter this term, we usually refer to a serious situation in which someone needs to be very careful and guarded. For example, when driving in heavy traffic or walking on a slippery surface, it is best to hang-tight to avoid accidents or injuries. "More hang-loose," on the other hand, refers to a relaxed, carefree or laid-back attitude, usually associated with leisure activities such as going to the beach, surfing, or practicing yoga. These two terms are diametrically opposite and highlight the importance of being flexible in different situations.