un ‧ ho ‧ ly /ʌnˈhəʊli $ -ˈhoʊ-/ BrE AmE adjective [no comparative]
1 . an unholy alliance an agreement between two people or organizations who would not normally work together, usually for a bad purpose
2 . [only before noun] informal bad and extreme:
An unholy row broke out between two of the men drinking in the bar.
an unholy mess
3 . not holy, or not respecting what is holy
4 . unholy amusement/delight/pleasure pleasure etc that you get from someone else’s suffering:
He was taking an unholy delight in humiliating Sarah.