"The negotiations on migration policy of EU in Brussels have rather positive results."

Late Middle English: from Old French positif, -ive or Latin positivus, from posit- ‘placed’, from the verb ponere. The original sense referred to laws as being formally ‘laid down’, which gave rise to the sense ‘explicitly laid down and admitting no question’, hence ‘certain’.

Consisting in or characterized by the presence rather than the absence of distinguishing features.

Containing, producing, or denoting an electric charge opposite to that carried by electrons.

(of a photographic image) showing lights and shades or colours true to the original.

Philosophy
Dealing only with matters of fact and experience; not speculative or theoretical.

A result of a test or experiment indicating that a certain substance or condition is present or exists.