Meaning only pls.?

Question

What is the meaning or definition of drastically? like before hes voice will change too drastically

Answer 1

1. Severe or radical in nature; extreme: the drastic measure of amputating the entire leg; drastic social change brought about by the French Revolution.

2. Taking effect violently or rapidly: a drastic emetic.

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Like a total 180.

Answer 2

–adjective

1. acting with force or violence; violent.

2. extremely severe or extensive: a drastic tax-reduction measure.