Ion of tennis, 6 letters
Nastase contemporary, 6 letters
Arduous, 6 letters
Burdensome, 6 letters
Exhausting, 6 letters
Fading fast, 6 letters
Getting weary, 6 letters
Growing weary, 6 letters
Laborious, 6 letters
Like a marathon, 6 letters
Like hard work, 6 letters
Strenuous, 6 letters
Wearisome, 6 letters
Draining, 9 letters