What does it mean to be amilliial in christanity?

Maybe you mean "amillennial" 

Amillennialism (Greek: a- "no" + millennialism), or amillenarism, in Christian eschatology, affirms the millennial reign of Christ began after his ascension and will continue until Christ's return. This view does not hold that Jesus Christ will physically reign on the earth for exactly 1,000 years.

You made up the word, you get to say what it means.

A person can know numerous truths by reciting the rosary every day with care.

It shows that Christians have a greater capacity to be systarative. 

Sorry, but there's no such word. 

I don't think that's an actual word.

never heard of it..