insipidest

Adjective

insipid (comparative more insipid, superlative most insipid)

1. Unappetizingly flavorless.
   • The diners were disappointed with the plain, insipid soup they were served.

   Synonyms:

   tasteless, bland, vapid, wearish

   Antonyms:

   savory, savorous, sapid, flavoury, gustable, saporific, saporous, tastable, tasteable

2. Flat; lacking character or definition.
   • The textbook had a most insipid presentation of the controversy.

   Synonyms:

   boring, vacuous, dull, bland, vapid, characterless, colourless