Hardest University Degree

university degree
An academic degree is an award conferred by a college or university signifying that the recipient has satisfactorily completed a course of study. Academic degrees were first introduced during Middle Ages and there were little differentiation between them.
abgeschlossenes Hochschulstudium

hardest
(of information) Reliable, esp. because based on something true or substantiated
(of a person) Not showing any signs of weakness; tough
Solid, firm, and resistant to pressure; not easily broken, bent, or pierced
(Harder (fish)) The South African mullet (Liza richardsonii), also called a harder mullet or simply harder, is a species of mullet. It is found in South African coastal waters from Walfish Bay to Natal, and grows to a maximum length of 40.5 cm.
Superlative form of hard. Most rigid or most difficult
(harder) Any of several species of mullet often used to make bokkoms; comparative form of hard: more hard