Then there is that translucent physical beauty of Natasha's, which, alas, almost upstaged her.
He wore a sparkly jacket that was terrifying to behold, but was alas not festooned with electric lights.
alas, one can see that he is not held in high esteem by the military.
mid-13c., from Old French ha, las (later French hélas), from ha "ah" + las "unfortunate," originally "tired, weary," from Latin lassus "weary" (see late). At first an expression of weariness rather than woe.