larger than life

adjective2

1. •
   Of greater size or magnitude than is naturally or normally the case; of larger size than life-size.

   • Miss Snevellicci's papa looked very big indeed—several sizes larger than life. — 1838
2. •
   (figurative) Very imposing, renowned, or impressively influential.

   • I'm holding out for a hero 'til the morning light / He's gotta be sure and it's gotta be soon / And he's gotta be larger than life — 1984