deceitful;doing things secretly
suggesting that one knows sth secret;knowing
"cunning men often pass for wise"
"deep political machinations"
"a foxy scheme"
"a slick evasive answer"
"sly as a fox"
"a wily old attorney"
A sly old fish, too cunning for the hook.
出自： G. Crabbe
He struck me always as a sly nasty fellow,..always on the make.
出自： N. Freeling