'Light-mindedness' definitions:

Definition of 'light-mindedness'

(from WordNet)
noun
Inappropriate levity; "her mood changed and she was all lightness and joy" [syn: flippancy, light-mindedness]

Definition of 'Light-mindedness'

From: GCIDE
  • Light-minded \Light"-mind`ed\ (l[imac]t"m[imac]nd`[e^]d), a.
  • 1. Unsettled; unsteady; volatile; not considerate. [1913 Webster]
  • 2. showing inappropriate levity. [WordNet sense 1]
  • Syn: flippant. [WordNet 1.5] -- {Light"-mind`ed*ness}, n. [1913 Webster]