GOD'S WORD® Translation
and may have had sexual intercourse with another man without her husband's knowledge. She may have kept it secret if there were no witnesses to accuse her and she wasn't caught in the act.

American Standard Version
and a man lie with her carnally, and it be hid from the eyes of her husband, and be kept close, and she be defiled, and there be no witness against her, and she be not taken in the act;

Berean Study Bible
by sleeping with another man, and it is concealed from her husband and her impurity is undetected (since there is no witness against her and she was not caught in the act),

Douay-Rheims Bible
Shall have slept with another man, and her husband cannot discover it, but the adultery is secret, and cannot be proved by witnesses, because she was not found in the adultery:

English Revised Version
and a man lie with her carnally, and it be hid from the eyes of her husband, and be kept close, and she be defiled, and there be no witness against her, neither she be taken in the act;

King James Bible
And a man lie with her carnally, and it be hid from the eyes of her husband, and be kept close, and she be defiled, and there be no witness against her, neither she be taken with the manner;

World English Bible
and a man lies with her carnally, and it is hidden from the eyes of her husband, and is kept close, and she is defiled, and there is no witness against her, and she isn't taken in the act;

Young's Literal Translation
and a man hath lain with her with the seed of copulation, and it hath been hid from the eyes of her husband, and concealed, and she hath been defiled, and there is no witness against her, and she hath not been caught,

Numbers 5:13 Additional Translations ...