Synonyms of the word 
PUISSANT → POWERFUL
puissant
- adj. (archaic or literary) Powerful, mighty, having authority.
powerful
- adj. Having, or capable of exerting power, potency or influence.
- adj. (mining) Large; capacious; said of veins of ore.
If you are interested in words, visit the following sites :
- wiktionary.org/puissant For complete definition of a word
- 1word.ws/puissant to play with words, suffixs, prefixs, etc.