heroic

having or displaying qualities appropriate for heroes

the heroic attack on the beaches of Normandy

heroic explorers

showing extreme courage; especially of actions courageously undertaken in desperation as a last resort

made a last desperate attempt to reach the climber

the desperate gallantry of our naval task forces marked the turning point in the Pacific war"- G.C.Marshall

of behavior that is impressive and ambitious in scale or scope

an expansive lifestyle

in the grand manner

very imposing or impressive; surpassing the ordinary (especially in size or scale)

an epic voyage

of heroic proportions

relating to or characteristic of heroes of antiquity

heroic legends

the heroic age

a verse form suited to the treatment of heroic or elevated themes; dactylic hexameter or iambic pentameter