positive

adjective:optimistic or hopeful; showing confidence and a constructive attitude
- She stayed positive even after hearing the disappointing news.
adjective:certain or definite; leaving no doubt
- The witness gave a positive identification of the suspect.
adjective:a result of a test indicating the presence of something
- The test came back positive for the virus.
adjective:having a deficiency of electrons; opposite of negative
- A positively charged ion moves toward the cathode in the electric field.
adjective:greater than zero; not negative
- The company's earnings turned positive for the first time this year.
noun:an affirmative answer or response
- When asked if she wanted coffee, she gave a quick positive.
noun:a good, useful, or desirable quality or attribute
- Focus on the positives in your life.
adjective:desirable or good
- The new policy has had a positive impact on morale.