01 n. Sourness and harshness to the taste.
pl.
Austerities
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1.
Sourness and harshness to the taste.[Obs.]
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2.
Severity of manners or life; extreme rigor or strictness; harsh discipline.“The austerity of John the Baptist.” — Milton.
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3.
Plainness; freedom from adornment; severe simplicity.“Partly owing to the studied austerity of her dress, and partly to the lack of demonstration in her manners.” — Hawthorne.