Definition of superpowerful
: extremely powerful
superpowerful winds a superpowerful international conglomerate There is a growing optimism in the tech world that quantum computers, superpowerful devices that were once the stuff of science fiction, are possible—and may even be practical.— John Markoff
Test Your Vocabulary
The Great British Vocabulary Quiz
-
- Named after Sir Robert Peel, what are British police called?

Can you spell these 10 commonly misspelled words?
TAKE THE QUIZ
A daily challenge for crossword fanatics.
TAKE THE QUIZLove words? Need even more definitions?
Merriam-Webster unabridged
Share superpowerful
Time Traveler for superpowerful
The first known use of superpowerful was in 1882
See more words from the same year