Antonyms of adj under-the-counter

1 sense of under-the-counter

Sense 1
under-the-counter -- (done or sold illicitly and secretly;)

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

Similarity of adj under-the-counter

1 sense of under-the-counter

Sense 1
under-the-counter -- (done or sold illicitly and secretly;)
       => illegal (vs. legal) -- (prohibited by law or by official or accepted rules; "an illegal chess move")