Odysseus shows his improving character by learning from his past mistakes to improve the future.
The Greeks showed no signs of disloyalty as a respectable trait for any man or woman, therefore when Odysseus is described as a faithful man, he is immediately categorized as a hero.
To an extent Odysseus’s bravery can be substantiated by Athena’s constant support, and also proving his loyalty to the Greek Gods during his twenty years away from home.
During the period where heroes were described as intelligent, loyal, and dedicated, Odysseus is described as a model warrior in Homer’s “Odyssey” and a true heroic being.
With his intelligence Odysseus saves the lives of his devoted followers when a desperate situation calls for hero.