One who cannot die -

 

 

One who dies for a noble cause is called a martyr. He is a person who dies fighting for what they believe in like advocating religious or other beliefs, refusing to renounce, etc...

One who hates marriage is called misogamist.

A sentence whose meaning is unclear is called as Ambiguous.

Iteration is most similar in meaning to the word repeatation i.e, looping.

A person who builds houses or buildings is known as builder.

A person who enjoys in feeling or being pain is called Masochist. The person who enjoys inflicting pain on others is called as Sadist.

The act of violating or misuse of what is regarded as sacred i.e, like the sanctity of the church is called Sacrilege.

The one word substitution for Of outstanding significance is monumental which has a meaning of great in importance, in size or any such characteristic.