Austere :: Austere () Sour and astringent; rough to the state; having acerbity; as, an austere crab apple; austere wine..
Austere :: Austere () Severe in modes of judging, or living, or acting; rigid; rigorous; stern; as, an austere man, look, life..
Austere :: Austere () Unadorned; unembellished; severely simple.
Austereness :: Austereness (n.) Harshness or astringent sourness to the taste; acerbity.