अर्थ : Not subject or susceptible to change or variation in form or quality or nature.
							उदाहरण : 
							The view of that time was that all species were immutable, created by God.
							
पर्यायवाची : immutable
Capable of or tending to change in form or quality or nature.
A mutable substance.अर्थ : Remaining the same for indefinitely long times.
पर्यायवाची : unalterable