Non-native to the ecosystem.
Being or relating to various wagers, such as the trifecta, that involve betting on the finishing positions of multiple competitors across one or more races.
Being or relating to an option with features that make it more complex than commonly traded options.
Foreign, especially in an exciting way.
Any exotic particle.
An organism that is exotic to an environment.
An exotic dancer; a stripteaser.
Unknown or known to only few people.
Previously unknown; unprecedented.