pru·dent /-dṇt/
  (a.)審慎的,三思而後行的,精明的,節儉的
  Pru·dent a.
  1. 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; as, prudent behavior.
     Moses established a grave and prudent law.   --Milton.
  2. Frugal; economical; not extravagant; as, a prudent woman; prudent expenditure of money.
  Syn: -- Cautious; wary; circumspect; considerate; discreet; judicious; provident; economical; frugal.
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  prudent
       adj 1: careful and sensible; marked by sound judgment; "a prudent
              manager"; "prudent rulers"; "prudent hesitation";
              "more prudent to hide than to fight" [ant: imprudent]
       2: showing wise self-restraint in speech and behavior
          especially in preserving prudent silence; "maintained a
          prudent silence"