sturdy russian

• кре́пкий

  strong, durable, sturdy

• про́чный

  durable, lasting, solid, firm, strong

  sturdy

• крепы́ш

  sturdy child

  robust but small man

• кре́пенький

  sturdy, rather strong, robust, fairly firm

• ра́жий

  strapping, sturdy, well-built, strong

Examples

• Э́та верёвка кре́пкая.This rope is sturdy.