vapid

Adjective
  1. Lacking taste or flavor or tang (synset 302408319)
    "a bland diet"; "insipid hospital food"; "flavorless supermarket tomatoes"; "vapid beer"; "vapid tea"
  2. Lacking significance or liveliness or spirit or zest (synset 302315681)
    "a vapid conversation"; "a vapid smile"; "a bunch of vapid schoolgirls"

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