Replies

antichrist from the Greek
500 antichristos an-tee'-khris-tos from 473 and 5547; an opponent of the Messiah:--antichrist.
1) the adversary of the Messiah

anti from the Greek
473 anti an-tee' a primary particle; opposite, i.e. instead or because of (rarely in addition to):--for, in the room of. Often used in composition to denote contrast, requital, substitution, correspondence, etc.
1) over against, opposite to, before
2) for, instead of, in place of (something)
a) instead of
b) for
c) for that, because
d) wherefore, for this cause

The antichrist is an:

adversary of Messiah
usurper of Messiah
instead of Messiah
opposite to Messiah
in place of Messiah

Messiah from the Hebrew
4899 mashiyach maw-shee'-akh from the root of 4886;
anointed; usually a consecrated person (as a king, priest, or saint);
specifically, the Messiah:--anointed, Messiah.
1) anointed, anointed one
a) of the Messiah, Messianic prince
b) of the king of Israel
c) of the high priest of Israel
d) of Cyrus
e) of the patriarchs as anointed kings

Now Christ from the Greek
5547 Christos khris-tos' from the root 5548;
anointed, i.e. the Messiah, an epithet of Jesus:--Christ.
Christ = "anointed"
1) Christ was the Messiah, the Son of God
2) anointed

Notice what IS MISSING? In the Greek, there are no other options given.

1 John 2
18 Little children, it is the last time: and as ye have heard that antichrist shall come, even now are there many antichrists; whereby we know that it is the last time.
19 They went out from us, but they were not of us; for if they had been of us, they would no doubt have continued with us: but they went out, that they might be made manifest that they were not all of us.

The antichrist and other antichrists were already around when John wrote his epistle.

John makes perfectly clear that MANY antichrists had gone out FROM THEM (early believers) teaching false doctrine regarding Yehoshua. These "antichrists," or usurpers of the true Messiah, were promoting doctrines that presented a Christ that was in place of or instead of the TRUE Messiah. They were teaching a "replacement" Messiah.