well-practiced russian

• обка́танный

  broken-in, run-in, tested, well-practiced

• напрактикова́вшийся

  well-practiced, experienced, seasoned, proficient (through practice)

• нака́танный

  well-worn, well-trodden, compacted, rolled (of a road)

  well-practiced, routine, established, smoothly running

Examples

• Адвокатствовавший в молодости отец хорошо знал законы.

  My father, who had practiced law in his youth, knew the law well.