Unique ; one of a kind ; in Bengali, "rup" means beauty, "upam" means example, "A" creates the negation and thus "Arupam" means somebody or something whose beauty has no example, i.e., unique
The colors of a realrainbow is truly arupam!
An arupam portrait was painted by the painter!
The beauty of watching a sunrise is truly arupam!
Boys who enjoy yaoi (a genre in Japan that contains sexual and/or romantic relations between two men); literally translates to "rotten boy"; corresponding female : fujoshi