"a bland diet" "insipid hospital food" "flavorless supermarket tomatoes" "vapid beer" "vapid tea"
"a vapid conversation" "a vapid smile" "a bunch of vapid schoolgirls"
Tuneful but vapid musical comedies.
牛津高阶第八版
美国韦氏词典
Dictionary.com
Free Dictionary
维基百科 (自由的百科全书)