Synonyms and Antonyms of ENIGMA

something hard to understand or explain <how Thomas Jefferson could be both a slaveholder and a champion of liberty remains an enigma>

April 17, 2015
rebarbative Hear it
repellent, irritating
Take a 3-minute break and test your skills!
How to use a word that (literally) drives some people nuts.
Test your vocab with our fun, fast game
Ailurophobia, and 9 other unusual fears