Discernment: the right to choose what should be done in a particular situation; the quality of being careful about what you do and say so that people will not be embarrassed or offended; the quality of being discreet.
Showing discernment or good judgment: the ability to make responsible decisions; individual choice or judgment; the power of free decision or latitude of choice within certain legal bounds; separating or distinguishing.
First Known Use: 14th century. Synonyms: discreetness, common sense, horse sense, levelheadedness. Antonyms: imprudence, indiscretion
Source: MerriamWebster online.