Main entry: muscularity, energy, vigor, vigour, vim
Definition: an imaginative lively style (especially style of writing)
Usage: his writing conveys great energy; a remarkable muscularity of style
Main entry: dynamism, heartiness, vigor, vigour
Definition: active strength of body or mind
Main entry: vigor, vigour, zip, energy
Definition: forceful exertion
Usage: he plays tennis with great energy; he's full of zip