noun

brilliant display or effect.

he finished his recital with great éclat

style,stylishness,flamboyance,confidence,self-assurance,elan,dash,flair,flourish,vigour,vivacity,vivaciousness,gusto,verve,zest,sparkle,brio,panache,exuberance,ebullience,enthusiasm,eagerness,vitality,dynamism,animation,liveliness,spirit,energy,pizzazz,pep,oomph,vim,zing,get-up-and-go