drastic
adjective
[ ˈdrastɪk ]
• likely to have a strong or far-reaching effect; radical and extreme.
• "a drastic reduction of staffing levels"
Similar:
extreme,
serious,
forceful,
desperate,
dire,
radical,
far-reaching,
momentous,
substantial,
heavy,
sharp,
severe,
harsh,
rigorous,
swingeing,
punishing,
excessive,
oppressive,
draconian,
Origin:
late 17th century (originally applied to the effect of medicine): from Greek drastikos, from dran ‘do’.