Synonyms of the word 
DRASTIC → FORCEFUL
drastic
- adj. Having a strong or far-reaching effect; extreme, severe.
- adj. Acting rapidly or violently.
forceful
- adj. With assertive force; powerful.
If you are interested in words, visit the following sites :
- wiktionary.org/drastic For complete definition of a word
- 1word.ws/drastic to play with words, suffixs, prefixs, etc.