undercraft noun 5verb 2adjective 1forms 3 noun5 •(old-fashioned) A submarine.Before considering the ways of combatting "undercraft," analyze the characteristics of this class of sea-fighters. — 1917 •An underground crypt.According to the plans of the second Arthur, an undercraft was to be hewn out beneath the whold of the new building, and this was to be reserved for a sepulchre or mausoleum. — 1815 •An apprentice or journeyman. •(no longer used) A sly trick, or subterfuge in general.Mrs. Lambert believed this, and Ivon would not permit himself to doubt it; for to a generous and noble character like his, the undercraft and meanness of a small nature is simply incomprehensible. — 1872 •(no longer used) Witchcraft or sorcery.Under-craft, witchcraft, call it what you will, but it is indeed poisonous. — 2008 verb2 •To make with insufficient craftsmanship."I'd infinitely rather fall into the trap of overcrafting an ad than undercrafting it,” confesses Graham Warsop, “though clearly a healthy balance is preferable. […]" — 2012 •(no longer used) To outwit; to outmaneuver.In mock obeisance bow him low And he succumbs your slave: a show Of high respect will undercraft His cunning wit! — 1901 adjective1 •Beneath a craft (water, air, or space vehicle).All models are recording instruments, instantaneously charting undercraft conditions on a permanent record. — 1952 formsundercrafted · undercrafting · undercrafts