nicety β a delicate or fine point; punctilio: niceties of protocol.
perception β the act or faculty of perceiving, or apprehending by means of the senses or of the mind; cognition; understanding.
quality β an essential or distinctive characteristic, property, or attribute: the chemical qualities of alcohol.
sensitivity β the state or quality of being sensitive; sensitiveness.
acumen β keenness and quickness in understanding and dealing with a situation; shrewdness
acuteness β sharp or severe in effect; intense: acute sorrow; an acute pain.
analysis β Analysis is the process of considering something carefully or using statistical methods in order to understand it or explain it.
clearness β free from darkness, obscurity, or cloudiness; light: a clear day.
diagnosis β Diagnosis is the discovery and naming of what is wrong with someone who is ill or with something that is not working properly.
differential β of or relating to difference or diversity.
discernment β the faculty of discerning; discrimination; acuteness of judgment and understanding.
discreteness β apart or detached from others; separate; distinct: six discrete parts.
discretion β the power or right to decide or act according to one's own judgment; freedom of judgment or choice: It is entirely within my discretion whether I will go or stay.
earmark β any identifying or distinguishing mark or characteristic: The mayor's statement had all the earmarks of dirty politics.
individuality β the particular character, or aggregate of qualities, that distinguishes one person or thing from others; sole and personal nature: a person of marked individuality.
mark β Marcus Alonzo ("Mark") 1837β1904, U.S. merchant and politician: senator 1897β1904.
marking β a visible impression or trace on something, as a line, cut, dent, stain, or bruise: a small mark on his arm.
particularity β the quality or state of being particular.
peculiarity β a trait, manner, characteristic, or habit that is odd or unusual.