n. an airheaded person. [ disparaging ] [ PJC ]
adj. 1. lacking seriousness; given to frivolity; scatterbrained; stupid; simple-minded; as, airheaded teenagers. Contrasted with serious, solemn Syn. -- dizzy, empty-headed, featherbrained, giddy, lightheaded, light-headed, silly [ WordNet 1.5 ]