† ˈsubitous,a.Obs. [f. L. subitus(see subite) + -ous.] Sudden. 1657W. Morice Coena quasi κοινὴ 341 We find conversion..under the notion of such things as are not onely subitous but instantaneous.1665G. Harvey Advice agst. Plague 3 An universal Lassitude, or Subitous soreness of all one's Limbs.