The term OUTING SPOILER can be solved by the crossword solutions STORM (5 letters) and RAIN (4 letters). Storms are a type of severe weather that is characterized by strong winds, heavy RAIN, thunder, and lightning. RAIN is a form of precipitation that falls from the sky in the form of water droplets. Both storms and RAIN can spoil outdoor activities such as picnics or camping trips, making them an appropriate solution to the term OUTING SPOILER.