a. [ L. vapidus having lost its life and spirit, vapid; akin to vappa vapid wine, vapor vapor. See Vapor. ] Having lost its life and spirit; dead; spiritless; insipid; flat; dull; unanimated;
A cheap, bloodless reformation, a guiltless liberty, appear flat and vapid to their taste. Burke. [ 1913 Webster ]
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n. The quality or state of being vapid; vapidness. [ 1913 Webster ]