Un-geheáfdod

According to the Old English Dictionary:

un-geheáfdod

adj. Not come to a head :-- Gif se slyte blind bið and mid ðam geswelle ungeheáfdud, ðonne lege ðú ða wyrte ðǽrtó, sóna hit sceal openian, Lchdm. i. 92, 26. un-geheafdod