One word substitute is Brittle. Breakable: capable of breaking or being broken easily. Ductile: (of a metal) able to be drawn out into a thin wire. Brittle: hard but liable to break easily. Delicate: very fine in texture or structure; of intricate workmanship or quality.
From One Word Substitution · English Language Competence Test
To do away with a rule
Government by rich:
The original inhabitants of a country
A person who is talkative
An old unmarried woman
One who forcibly seizes control of a bus
One who studies insect life:
A man who operates on sick people