positive /ˈpɒzətɪv/ adjective
HAPPY › feeling happy about your life and your future: a positive attitude I'm feeling much more positive about things now.
ENCOURAGING › Something that is positive makes you feel better about a situation: We've shown people samples of the product and had a very positive response.
CERTAIN [never before noun] › certain that something is true: "Are you sure you saw him?" "Absolutely positive." [+ (that)] I'm positive that I switched it off.
MEDICAL TEST › If a medical test is positive, it shows that the person being tested has a disease or condition: She did a pregnancy test and it was positive.
NUMBER › In mathematics, a positive number is greater than zero.
positive charge › the electrical charge that is carried by protons (= parts of atoms)