Antonyms of adj non-slave

1 sense of non-slave

Sense 1
free-soil, slaveless, non-slave -- (where slavery was prohibited; "a free-soil state")

INDIRECT (VIA free) -> unfree -- (held in servitude; "he was born of slave parents")

Similarity of adj non-slave

1 sense of non-slave

Sense 1
free-soil, slaveless, non-slave -- (where slavery was prohibited; "a free-soil state")
       => free (vs. unfree) -- (not held in servitude; "after the Civil War he was a free man")