overweening (adjective) overweening: arrogant
Sinonime: artful, cloak-and-dagger, closet,
concealed,
covert,
foxy,
fraudulent,
furtive,
hidden, hush-hush,
illegitimate, illicit, in holes and corners, on the Q. T., on the quiet,
private,
sneaky,
stealthy,
surreptitious, under wraps, under-the-counter, undercover,
underground, underhand
Antonime: aboveboard,
forthright,
open,
truthful