Most costly the word game is used is described below.
Explanation:
This sentence tells about the story of a man fishing.
He is said to have been waiting patiently until finally catching a fish. Despite being tired for the long wait, the man is still willing to continue fishing.
The word "game" is used to define the man's willingness to keep fishing despite his "wearyness" and "signs of bad luck".
As the person is waiting for a long time waiting to catch a fish so MOST COSELY the word game is used because after waiting for so long he finally catches one and even though it took so long he is still interested to catch more fish.
