sure, certain, positive, cocksure mean having no doubt or uncertainty. sure usually stresses the subjective or intuitive feeling of assurance. certain may apply to a basing of a conclusion or …

POSITIVE definition: 1. full of hope and confidence, or giving cause for hope and confidence: 2. certain and without…. Learn more.

1. characterized by or expressing certainty or affirmation: a positive answer. 2. composed of or possessing actual or specific qualities; real: a positive benefit. 3. tending to emphasize what is good …

showing or expressing approval or agreement; favorable: a positive reaction to the speech. consisting in or characterized by the presence or possession of distinguishing or marked qualities or features …

If you are positive, you are hopeful and confident, and think of the good aspects of a situation rather than the bad ones.

There are 39 meanings listed in OED's entry for the word positive, seven of which are labelled obsolete. See ‘Meaning & use’ for definitions, usage, and quotation evidence.

In English, the term 'positive' acquired the connotation of being characterized by optimism, favorability, or a constructive nature, reflecting an affirmative and confident stance.

Positive words allow you to highlight someone’s qualities. Rather than repeating “nice” or “good,” the English vocabulary offers hundreds of positive adjectives and adverbs to describe precisely what …

Positive psychology is the scientific study of conditions and processes that contribute to positive psychological states (e.g., contentment, joy), well-being, positive relationships, and positive …

(of a person) diagnosed as having a specified medical condition, or having a specified substance in the body (often used in combination): She tested positive for lupus.