Antonyms of adj extrajudicial

1 sense of extrajudicial

Sense 1
extrajudicial -- (beyond the usual course of legal proceedings; legally unwarranted; "an extrajudicial penalty")

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

Similarity of adj extrajudicial

1 sense of extrajudicial

Sense 1
extrajudicial -- (beyond the usual course of legal proceedings; legally unwarranted; "an extrajudicial penalty")
       => illegal (vs. legal) -- (prohibited by law or by official or accepted rules; "an illegal chess move")