Hwurful

According to the Old English Dictionary:

hwurful

adj. Changeable, fickle :-- Hwæt getácniaþ ða truman ceastra bútan hwurfulu mód what do the strong cities betoken but fickle minds; quid per civitates munitas nisi suspectæ mentes, Past. 35, 5; Swt. 245, 7. hwurful