A scientific person :)
A person who believes that war is wrong is called a "pacifist".
A tolerant person.
conceited
Gullible.
a believer
One who believes that everything is predistined -FATALIST
Christian, Jew, Jehova
Well ! If some person believes that his/her dreams do come true, means he believes he/she has the ability to perceive events in the future is normally called Clairvoyant.
A person who believes that the universe and everything in it is God, rather than created by a god or gods, is called a pantheist.
This is called an opinion.
a believer faithful, disciple, follower, gnostic