Positive Canthal
Sure, certain, positive, cocksure mean having no doubt or uncertainty. The most important thing is to go into the exam feeling positive. It's a humbling experience to see people being so positive about life when they have so little.
See examples of positive used in a sentence. The positive in a situation is the good and pleasant aspects of it. He prefers to focus on the positive.
Definition of positive adjective in oxford advanced learner's dictionary. Did you have a positive [= pleasant] experience working with that company? The book had a positive influence on me.
He has been a positive role model for his brother. Some common synonyms of positive are certain, cocksure, and sure. While all these words mean "having no doubt or uncertainty," positive intensifies sureness or certainty and may imply opinionated.