oiler (noun) oil well: hole to extract oil
Sinonime: buried, cached, camouflaged,
covered, covered up, covert, enshrouded, guarded, holed up, hush-hush, hushed up, incog,
incognito,
inconspicuous, masked, obscure, obscured, on the Q. T., perdu, planted, privy, put in the hole,
recondite, screened, secreted, shrouded, stashed, tucked away,
ulterior, under wraps,
unseen, veiled
Antonime: bare,
clear, disclosed,
exposed,
obvious,
open,
plain, revealed,
shown, told, uncovered