prudent

Definitions:

Cautious; practically wise, circumspect; careful of consequences; dictated by prudence; foreseeing by instinct; grugal.
- Nuttall's Standard dictionary of the English language. By Nuttall, P.Austin. Published 1914. (adjective) (adj.) (adjective)
Careful of the consequences of measures or actions; correct and decorous in manner; cautious; wary; judicious.
- Etymological and pronouncing dictionary of the English language. By Stormonth, James, Phelp, P. H. Published 1874. (adjective) (adj.) (adjective)
Wise in conduct; cautious.
- The Clarendon dictionary. By William Hand Browne, Samuel Stehman Haldeman. Published 1894. (adjective) (adj.) (adjective)
Provident or foreseeing: cautious and wise in conduct: careful: discreet: dictated by fore thought: frugal.
- The american dictionary of the english language. By Daniel Lyons. Published 1899. (adjective) (adj.) (adjective)
Practically wise; careful of the result of measures or actions; wisely thoughtful; judicious; cautious; discreet.
- The Winston Simplified Dictionary. By William Dodge Lewis, Edgar Arthur Singer. Published 1919. (adjective) (adj.) (adjective)
Prudently.
- The Winston Simplified Dictionary. By William Dodge Lewis, Edgar Arthur Singer. Published 1919. (adverb) (adv.) (adverb)

Usage examples:

John gives the disciple's name, which it was not prudent for the other Evangelists to do when Peter, who struck the blow, was still living.
- A Life of St. John for the Young by George Ludington Weed
" Not just yet," was the prudent answer; " but perhaps when I am grown a woman I may travel with Graham."
- The Worlds Greatest Books Vol. II: Fiction by Arthur Mee, J. A. Hammerton, Eds.
They have done so much that it seems neither prudent nor possible to do more.
- The Ancien Regime by Charles Kingsley