dis‧or‧i‧en‧ting also dis‧or‧i‧en‧tat‧ing British English
making someone not know where they are or which direction they should go:
a disorientating maze of corridors
confusing you and making you not certain about what is happening around you:
Lack of sleep can be disorienting.
—disorient also disorientate British English verb [transitive] —disorientation noun [uncountable]