Bitterness
Nouns
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bitterness, acridness, acridity, acrimony
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caustic, alkali
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acerbity
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gall, wormwood
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bitters, astringent bitters. Angostura [additive for alcoholic beverages], aromatic bitters. sourness etc. Sourness
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pungency etc. Pungency. [bitter substances] alkaloids
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turmeric.
Adjectives
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bitter, bitterish, acrid, acerb, acerbic.
Phrases
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bitter as gall
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bitter pill to take
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sugar coating on a bitter pill.