knew ropes (verb) know the ropes: understand the particulars of a situation
Sinonime: assertive,
audacious,
bold,
brazen,
certain, cocksure, collected,
complacent, composed, confident, cool, gung ho, gutsy,
high*, imperturbable, overconfident, poised,
positive, puffed up, pumped up,
pushy, rosy,
sanguine,
secure, self-assured, self-confident, self-possessed,
sure, unflappable, unhesitating,
upbeat*
Antonime: confused, dismayed, distrustful,
doubtful, doubting,
fearful,
hesitant, nervous