1.
[syn: flippancy, light-mindedness]
The Collaborative International Dictionary of English v.0.48:
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]
WordNet (r) 3.0 (2006):
light-mindedness
n 1: inappropriate levity; "her mood changed and she was all
lightness and joy" [syn: flippancy, light-mindedness]