crouched russian

• пригну́вшийся

  crouched, bent down, stooped

• присе́вший

  squatted, having squatted, having crouched, having sat down briefly

• присели́вший

  having sat down briefly, who had sat down for a moment

  having crouched, having squatted, who had crouched

• скрю́чившийся

  bent, hunched, crouched, doubled over, contorted

Examples

• Том сел на корточки рядом с Мэри.Tom crouched down next to Mary.