Hypertext Webster Gateway: "lightheartedness"
From Webster's Revised Unabridged Dictionary (1913) (web1913)
Light-hearted \Light"-heart`ed\ (-h[aum]rt`[e^]d), a.
Free from grief or anxiety; gay; cheerful; merry. --
{Light"-heart`ed*ly}, adv. -- {Light"-heart`ed*ness}, n.
From WordNet (r) 1.7 (wn)
lightheartedness
n : the cheerful feeling you have when nothing is troubling you
[syn: {carefreeness}, {insouciance}, {lightsomeness}]
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