Word Study
drastic
OXFORD DICTIONARY
drastic, adj. having a strong or far-reaching effect; severe.
Derivative
drastically adv.
Etymology
Gk drastikos f. drao do
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, virulentROGET 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.For further exploring for "drastic" in Webster Dictionary Online