WordNet sense 1 (a verse form suited to the treatment of heroic or elevated themes; dactylic hexameter or iambic pentameter):

heroic verse, heroic meter

WordNet sense 2 (very imposing or impressive; surpassing the ordinary (especially in size or scale)):

epic, larger-than-life

WordNet sense 3 (of behavior that is impressive and ambitious in scale or scope):

expansive, grand

WordNet sense 4 (making a strong or vivid impression):

impressive

WordNet sense 5 (showing extreme courage; especially of actions courageously undertaken in desperation as a last resort):

desperate

WordNet sense 6 (possessing or displaying courage; able to face and deal with danger or fear without flinching):

brave, courageous

WordNet sense 7 (having or displaying qualities appropriate for heroes):

heroical

WordNet sense 8 (fearless and daring):

bold