definition of
positive

[1] #1 positive s. [convinced, confident] persuaded of; very sure; "were convinced that it would be to their advantage to join"; "I am positive he is lying"; "was confident he would win". wn

[2] #2 positive s. [plus] involving advantage or good; "a plus (or positive) factor". wn

[3] #3 positive s. [prescribed] formally laid down or imposed; "positive laws". wn

[4] #4 positive s. [incontrovertible, irrefutable] impossible to deny or disprove; "incontrovertible proof of the defendant's innocence"; "proof positive"; "an irrefutable argument". wn

[5] #5 positive n. [positive degree] the primary form of an adjective or adverb; denotes a quality without qualification, comparison, or relation to increase or diminution. wn