Words similar to enigma

Example sentences for: enigma

How can you use “enigma” in a sentence? Here are some example sentences to help you improve your vocabulary:

No alternative mechanism for cysteine incorporation into proteins is known; hence the absence of CysRS in these organisms was an enigma.
What Henry David possesses remains an enigma.
Anyway, it's hard to tsk-tsk the man when his chief motivation is bedding Embeth Davidtz (as Mallory Doss), a dark-eyed, neurasthenic enigma with the South's most willowy gams.
Seagal is an enigma.
--is a further enigma.