The term "high-tension" refers to something that is highly stressful, dramatic, and full of suspense. Some antonyms for high-tension could be words such as relaxed, calm, peaceful, easygoing, laid-back, or stress-free. These words describe an environment or situation that is not characterized by excessive pressure, anxiety, or emotion. For example, a day spent lounging on the beach or hiking in the woods might be described as low-tension since it lacks the intense emotional charge of a high-tension situation. Alternately, a movie or book that is calming and relaxing might also be called low-tension, since it does not provoke strong emotions.