adj. 25B6; adjective
it is prudent to obtain consent : WISE, well judged, sensible, politic, judicious, sagacious, sage, shrewd, advisable, well advised.
a prudent approach to borrowing : CAUTIOUS, careful, provident, far-sighted, judicious, shrewd, circumspect; thrifty, economical.
unwise, reckless, extravagant.