From Middle English uncomli, uncomelich, uncumelich, unkumelich, equivalent to un- + comely.

uncomely (comparative uncomelier, superlative uncomeliest)

1. Not comely.

From Middle English uncomly, uncomli, from the adjective (see above).

uncomely

1. In an uncomely way; inappropriately, unappealingly.
   • 1590, Edmund Spenser, “Book II, Canto XI”, in The Faerie Queene. […], London: […] [John Wolfe] for William Ponsonbie, →OCLC ↗:

     The first troupe was a monstrous rablement / Of fowle misshapen wights, of which some were / Headed like Owles, with beckes vncomely bent […]