GRE重点词汇解析：immutable

　　immutable: 不可变的; not subject or susceptible to change

　　1) not capable of or susceptible to change

　　2) not subject or susceptible to change

　　3) unchangeable; permanent

　　Synonyms: constant, enduring, permanent, perpetual, unchangeable

　　immutable <> variable, instable

　　People should know that their freedom is not immutable and must be protected whenever necessary.

　　The teacher’s rule about cheating was immutable; anyone who was caught doing so received an F on the exam.

　　They proclaimed their immutable devotion to each other in their wedding vows.

　　The ties that bind alumni to their university are immutable .

　　The man's immutable schedule soon became boring.

　　【考法1】adj. 不可变的： not capable of changing or being changed

　　【例】 One of the immutable laws of television is that low ratings inevitably lead to cancellation. 电 视行业中

　　一个不变的原则就是：低收视率的节目必然会被撤掉

　　【近】 constant, fixed, inalterable, inflexible, invariable, unalterable, unchangeable

　　【反】 alterable, changeable, elastic, flexible, mutable, variable 可变的

　　【派】immutability n. 不变性