American Standard Version
to them that are without law, as without law, not being without law to God, but under law to Christ, that I might gain them that are without law.

Berean Study Bible
To those without the law I became like one without the law (though I am not outside the law of God but am under the law of Christ), to win those without the law.

Douay-Rheims Bible
To them that are under the law, as if I were under the law, (whereas myself was not under the law,) that I might gain them that were under the law. To them that were without the law, as if I were without the law, (whereas I was not without the law of God, but was in the law of Christ,) that I might gain them that were without the law.

English Revised Version
to them that are without law, as without law, not being without law to God, but under law to Christ, that I might gain them that are without law.

King James Bible
To them that are without law, as without law, (being not without law to God, but under the law to Christ,) that I might gain them that are without law.

World English Bible
to those who are without law, as without law (not being without law toward God, but under law toward Christ), that I might win those who are without law.

Young's Literal Translation
to those without law, as without law -- (not being without law to God, but within law to Christ) -- that I might gain those without law;

1 Corinthians 9:21 Additional Translations ...