1.Definition: having or displaying qualities appropriate for heroes
"The heroic attack on the beaches of Normandy", "Heroic explorers"
2.Definition: of behavior that is impressive and ambitious in scale or scope
3.Definition: relating to or characteristic of heroes of antiquity
"Heroic legends", "The heroic age"
4.Definition: showing extreme courage; especially of actions courageously undertaken in desperation as a last resort
"They took heroic measures to save his life"
5.Definition: very imposing or impressive; surpassing the ordinary (especially in size or scale)
"Of heroic proportions", "Heroic sculpture"