GOD'S WORD® Translation
Who is a liar? Who else but the person who rejects Jesus as the Messiah? The person who rejects the Father and the Son is an antichrist.

American Standard Version
Who is the liar but he that denieth that Jesus is the Christ? This is the antichrist, even he that denieth the Father and the Son.

Berean Study Bible
Who is the liar, if it is not the one who denies that Jesus is the Christ? This is the antichrist, who denies the Father and the Son.

Douay-Rheims Bible
Who is a liar, but he who denieth that Jesus is the Christ? This is Antichrist, who denieth the Father, and the Son.

English Revised Version
Who is the liar but he that denieth that Jesus is the Christ? This is the antichrist, even he that denieth the Father and the Son.

King James Bible
Who is a liar but he that denieth that Jesus is the Christ? He is antichrist, that denieth the Father and the Son.

World English Bible
Who is the liar but he who denies that Jesus is the Christ? This is the Antichrist, he who denies the Father and the Son.

Young's Literal Translation
Who is the liar, except he who is denying that Jesus is the Christ? this one is the antichrist who is denying the Father and the Son;

1 John 2:22 Additional Translations ...