Vine's Expository Dictionary: View Entry
†ἀντιλέγω antilégō, an-til'-eg-o; from G473 and G3004; to dispute, refuse:—answer again, contradict, deny, gainsay(-er), speak against.
The KJV translates Strong's G483 in the following manner: speak against (5x), deny (1x), contradict (1x), gainsay (1x), gainsayer (1x), answer again (1x).
to speak against, gainsay, contradict
to oppose one's self to one, decline to obey him, declare one's self against him, refuse to have anything to do with him
Strong's Number G483 matches the Greek ἀντιλέγω (antilegō),
which occurs 10 times in 9 verses
in the TR Greek.