surreptitious

2 antonyms for surreptitious — opposites grouped by meaning.

Adj — Done secretly and quietly so that other people do not notice.

Antonyms

overt open

Borrowed from Latin surrēptīcius (“furtive, clandestine”), from surrēpō (“to creep along”).

open secret underground sneak undercover sneaky clandestine overt furtive stealthy