Intense energy:
— His music is characterized by a happy athleticism.

synonym: strenuosity.

Roget 159: strength; power etc. 157; energy etc. 171; vigor, force; main force, physical force, brute force; spring, elasticity, tone, tension, tonicity.    stoutness etc. adj.; lustihood^†, stamina, nerve, muscle, sinew, thews and sinews, physique; pith, pithiness; virtility, vitality.    athletics, athleticism^†; gymnastics, feats of strength.    adamant, steel, iron, oak, heart of oak; iron grip; grit, bone.    athlete, gymnast, acrobat; superman, Atlas, Hercules, Antaeus^†, Samson, Cyclops, Goliath; tower of strength; giant refreshed.    strengthening etc. v.; invigoration, refreshment, refocillation^†.    [Science of forces] dynamics, statics.    ... show more