Adverb

(en adverb)

To a drastic degree.

This recession has been drastically different.

drastically reduced prices

In a drastic manner.

Lisa always wore shorts and a T-shirt, which clashed drastically with her brother's thick winter coat.

* 1920 , America , volume 22, page 255:

It explains why a Democratic Congress foisted Prohibition on the country and a Republican Congress drastically legislated to enforce it, when ordinarily the two parties are only too anxious for any political stick to beat each other with.

* 1928 , The Atlantic Monthly , volume 141, page 558:

Seldom have democratic principles been so drastically enacted into law.

* 1933 , The China Critic , volume 6, page 428:

A uniform marriage and divorce law must be drastically enacted by the Central Government and rigidly administrated by the higher courts.

Adverb

(en adverb)

In an efficient or effective manner; with powerful effect.

* {{quote-news

, year=2011 , date=December 19 , author=Kerry Brown , title=Kim Jong-il obituary , work=The Guardian citation , page= , passage=A state ideology, mixing nationalism, and basic Marxist economics, going under the name "Juche", was constructed, and Kim Il-sung effectively silenced, disposed of and cleared away any opposition, isolating the country and exercising an iron grip on the military, the state media and the government and party organs.}}

Essentially, in effect, for all practical purposes.

*{{quote-magazine, date=2012-03

, author=(Henry Petroski) , title=Opening Doors , volume=100, issue=2, page=112-3 , magazine= citation , passage=A doorknob of whatever roundish shape is effectively a continuum of levers, with the axis of the latching mechanism—known as the spindle—being the fulcrum about which the turning takes place.}}