THESAURUS
drastic
Draconian, acute, cutting, desperate, dire, excessive, exorbitant, extravagant, extreme, fierce, forceful, furious, great, harsh, immoderate, intemperate, intense, keen, outrageous, piercing, potent, powerful, puissant, radical, rigorous, rough, severe, sharp, splitting, strong, tough, unconscionable, vehement, venomous, vigorous, violent, virulent
ROGET THESAURUS
drastic
Physical Energy
N
energy, physical energy, force, power, keenness, intensity, vigor, strength, elasticity, go, high pressure, fire, rush, acrimony, acritude, causiticity, virulence, poignancy, harshness, severity, edge, point, pungency, cantharides, seasoning, activity, agitation, effervescence, ferment, fermentation, ebullition, splutter, perturbation, stir, bustle, voluntary energy, quicksilver, resolution, exertion, excitation, strong, energetic, forcible, active, intense, deep-dyed, severe, keen, vivid, sharp, acute, incisive, trenchant, brisk, rousing, irritation, poignant, virulent, caustic, corrosive, mordant, harsh, stringent, double-edged, double-shotted, double- distilled,
drastic, escharotic, racy, potent, radioactive, strongly, fortiter in re, with telling effect, the steam is up, vires acquirit eundo, the race by vigor not by vaunts is won.