The phrase "tight spots" implies difficult or uncomfortable situations. Some antonyms that could be used to describe less stressful circumstances include loose, easy, relaxed, spacious, comfortable, and simple. Loose would indicate a lack of confinement or restraint, while easy would suggest something that requires little effort or stress. Relaxed would imply a calm or casual atmosphere, and spacious would indicate plenty of room to move around. Comfortable would suggest that both physical and emotional needs are being met, and simple would indicate an absence of complications or difficulties. By using these words, speakers or writers can convey the opposite of the stressful situations often associated with "tight spots.