To ask my friend Google would be cheating ... but I did ask for the spelling of the word exotic ... which was not a synonym.

Thanks for a new daily subject, Mike. Far out !

Ted Bundy's esoteric world/mind resulted in him being a serial killer that others never understood

!https://dictionary.cambridge.org/us/dictionary/english/esoteric

very unusual and understood or liked by only a smallnumber of people, especially those with specialknowledge: