UNIQUE WORDS game to increase our vocabulary - alphabetical order

Calamity - an event resulting in great loss and misfortune

En Banc - a session in which a case is heard before all the judges of a court rather than by one judge or a panel of judges selected from them, in full court : with full judiciary authority

Gobsmacked - utterly astonished; astounded.

Imbroglio - an extremely confused, complicated, or embarrassing situation.
"the Watergate imbroglio"

Kitsch - art, objects, or design considered to be in poor taste because of excessive garishness or sentimentality, but sometimes appreciated in an ironic or knowing way.
"the lava lamp is an example of sixties kitsch"

Martinet - a strict disciplinarian, especially in the armed forces.
"the woman in charge was a martinet who treated all those beneath her like children"

Obdurate - stubbornly refusing to change one's opinion or course of action.
"I argued this point with him, but he was obdurate"