3 definitions
Definition.com
The Higher man (n.) at his highest would represent the antithetical character of existence most strongly — man must grow better and more evil at once.
Definition.com
The Higher man (n.) is afflicted because everything that distinguishes him reaches his consciousness accompanied by a feeling of diminution — his strengths are the cause of his gloom, while the mediocre stay cheerful.
Definition.com
The Higher man (n.) at his highest would have the greatest multiplicity of drives in the greatest strength that can be endured — as in Shakespeare, instincts that conflict powerfully but are controlled.