unusual

These include "unusual secretiveness, particularly around devices, mobile phones, social media accounts".

Piece By Piece, the new documentary about musician Pharrell Williams, is unusual in many respects - not least because it is entirely animated with Lego.

Titan’s hull was also an unusual shape - cylindrical, rather than spherical.

Joshua Oppenheimer, an Oscar nominee for his documentaries “The Act of Killing” and “The Look of Silence,” made the unusual choice to make his narrative feature debut an original musical.

The sighting was unusual because the beluga was so tame and they're rarely seen as far south.