enigma
/ɛˈnɪɡmə/Definitions
1. noun
a person or thing that is mysterious or difficult to understand
“The artist’s enigmatic smile in the painting has been the subject of much debate.”
2. noun
a puzzle or riddle
“The math problem was an enigma that stumped the students.”
3. verb
to be mysterious or difficult to understand
“The politician’s words enigmatized the crowd, leaving them confused.”