The term MELLOWS OUT can be broken down into three crossword solutions: CHILLS (6 letters), THAWS (5 letters), and RELAXES (7 letters). The term MELLOWS OUT is used to describe a process of calming down or becoming less intense. CHILLS refers to a decrease in temperature, which can be used to describe a situation that has cooled off or become less heated. THAWS is the opposite of freezes, and can be used to describe a situation that has become less rigid or more flexible. RELAXES is used to describe a situation that has become less tense or more at ease. All three words together can be used to describe a situation that has become less intense or more mellow.