a. 乏味的, 走了气味的, 无生气的, 无趣味的

Vapid \Vap"id\, a. [L. vapidus having lost its lire and spirit,
vapid; akin to vappa vapid wine, vapor vapor. See {Vapor}.]
Having lost its life and spirit; dead; spiritless; insipid;
flat; dull; unanimated; as, vapid beer; a vapid speech; a
vapid state of the blood.

A cheap, bloodless reformation, a guiltless liberty,
appear flat and vapid to their taste. --Burke.
※ -- {Vap"id*ly}, adv. -- {Vap"id*ness}, n.