Antonyms of adj nonlegal

1 sense of nonlegal

Sense 1
extralegal, nonlegal -- (not regulated or sanctioned by law; "there were only extralegal recourses for their grievances")

INDIRECT (VIA illegal) -> legal -- (established by or founded upon law or official or accepted rules)

Similarity of adj nonlegal

1 sense of nonlegal

Sense 1
extralegal, nonlegal -- (not regulated or sanctioned by law; "there were only extralegal recourses for their grievances")
       => illegal (vs. legal) -- (prohibited by law or by official or accepted rules; "an illegal chess move")