insipid
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1. Without taste, tasteless; also, having only a very slight taste;
without perceptible flavour or flavour sufficient to gratify the palate.

    b. Path. insipid diabetes (diabetes insipidus), a form of the
disease, distinguished from saccharine diabetes (diabetes mellitus): see
DIABETES.

    2. fig. Wanting the qualities which excite interest or emotion;
uninteresting, lifeless, dull, flat.

  (In many early quotations it is doubtful whether the sense meant was 2
or 3.)

    {dag}3. Devoid of taste, intelligence, or judgement; stupid,
foolish, dull. Obs.

    {dag}B. as n. An insipid person or thing; one who is deficient in
sense, spirit, or taste. Obs.