Synonyms of enigma

1 Syllable
sphinx
2 Syllables
thrillers, thriller, unknowns, stumper, rebus, stumpers, teasers, sphinxes, teaser, puzzler, sphinges, puzzlers, riddle, riddling, chillers
3 Syllables
conundrums, mystery, whodunit, braintwister, mindboggler, brainteaser, paradox, mysteries, conundrum, brain-twister, mind-boggler
4 Syllables
perplexity, paradoxes, abstruseness, ambiguities, polysemy, perplexities, ambiguity
5 Syllables
abstrusenesses, polysemousness, inscrutableness, equivocacy
6 Syllables
inscrutability
7 Syllables
indeterminateness