1)     
Definition
of metaphysics
noun
[usually treated as singular]
- the branch of philosophy that
     deals with the first principles of things, including abstract concepts
     such as being, knowing, substance, cause, identity, time, and space. 
- abstract theory or talk with no
     basis in reality:his concept of society as an organic entity is, for
     market liberals, simply metaphysics
Metaphysics has two main strands:
that which holds that what exists lies beyond experience (as argued by Plato),
and that which holds that objects of experience constitute the only reality (as
argued by Kant, the logical positivists, and Hume).
2)     
Definition of fideism
noun
3)     
Definition of scholasticism
noun
- the
     system of theology and philosophy taught in medieval European
     universities, based on Aristotelian logic and the writings of the early
     Church Fathers and having a strong emphasis on tradition and dogma. 

 
