Cocksurely is a confident and arrogant attitude or belief. It is an expression of overconfidence and certainty about one's own abilities. Synonyms for the word "cocksurely" include "overconfidently," "arrogantly," "egotistically," "haughtily," "proudly," and "smugly." These words all convey a sense of self-assuredness and can be used to describe someone who is overly confident in their own abilities or knowledge. Cautiousness and humility are important traits to avoid situations where one might behave "cocksurely." Adopting an attitude of being open to learning and new experiences can help avoid such scenarios where one might blow things out of proportion and cause unnecessary problems.