(adj) :
Sagacious in adapting means to ends;
circumspect in action, or in determining any line of conduct; practically wise; judicious; careful; discreet; sensible; -- opposed to rash; as, a prudent man; dictated or directed by prudence or wise forethought; evincing prudence;; frugal; economical; not extravagant; e.g. prudent expenditure of money
"moses established a grave and prudent law. Milton."