prudent

About 3.78 uses per million words.

Meaning

adjective Sagacious in adapting means to ends; circumspect in action, or in determining any line of conduct.
It is prudent to consult a physician before beginning any new exercise regimen.
adjective Practically wise, judicious, shrewd.
His prudent career moves reliably brought him to the top.
adjective (The addition of quotations indicative of this usage is being sought:) Frugal; economical; not extravagant.
Only prudent expenditure may provide quality within a restrictive budget.