What is another word for became toughened?
Pronunciation: [bɪkˌe͡ɪm tˈʌfənd] (IPA) 
"Became toughened" is a common phrase to describe a process of becoming stronger or more resistant. There are many synonyms that can be used to express this idea, including hardened, fortified, reinforced, bolstered, steeled, and toughened up. Each of these words conveys the notion of durability and resilience, but also implies a sense of effort or challenge. Hardened, for example, suggests a process of toughening that may involve exposure to difficult or unpleasant circumstances. Reinforced and bolstered both convey the idea of strength through added support or protection. Whatever word is chosen, the message is clear: something has become tougher, more resilient, and better able to withstand challenges.
