Become inedible is a term used to describe food that has gone bad and is no longer safe to eat. The crossword solutions for this term are ROT (3 letters), SPOIL (5 letters), TURN (4 letters), and GOBAD (5 letters). ROT is a process where food begins to decompose due to bacteria, fungi, or other microorganisms. SPOIL is the result of food being exposed to air, heat, or moisture for too long, causing it to become unappetizing and unsafe to eat. TURN is when food changes color, texture, or flavor due to age or improper storage. GOBAD is when food has been left out for too long and has become inedible.