† monosyˈllabical,a.Obs.rare. [Formed as prec. + -al1.] = monosyllabic. 1686Phil.Trans. XVI. 63 A Monosyllabical Name.1755Johnson, Monosyllabical, consisting of words of one syllable.1776― in Boswell Life 22 Mar., He is quite unsocial; his conversation is quite monosyllabical.