From frenetic + -ism.
freneticism (usually uncountable, plural freneticisms)
- The quality or state of being frenetic.
2015 July 1, John Fordham, “Loz Speyer review – genre-bending trumpeter deserves a bigger stage”, in The Guardian[1]:It moved seamlessly between New York freneticism and the languid sway of the son dance style .