astute russian

• то́нкий

  thin, fine, delicate, slender, slim, subtle, dainty, high-pitched, keen, shrewd, astute

  delicate, subtle

• проница́тельный

  perceptive, perspicacious, acute, shrewd, astute

Examples

• Том был проница́тельным бизнесме́ном, заработавшим много де́нег.Tom was an astute businessman who made a lot of money.