Etymology From Middle English bitter, bittre, from Old English bitter, biter (“bitter”), from Proto-West Germanic *bitr, from Proto-Germanic *bitraz (“bitter”), equivalent to bite + -er (agent noun suffix) used attributively. Cognate with Saterland Frisian, West Frisian, Low German, Danish, Dutch, German, Norwegian Bokmål, Norwegian Nynorsk, and Swedish bitter, Icelandic bitur (all meaning “bitter”).
1
Having an acrid taste (usually from a basic substance).
The coffee tasted bitter.
Long after his cigar burnt bitter, he sat with eyes fixed on the blaze. When the flames at last began to flicker and subside, his lids fluttered, then drooped; but he had lost all reckoning of time when he opened them again to find Miss Erroll in furs and ball-gown kneeling on the hearth[…].1907 August, Robert W[illiam] Chambers, chapter III, in The Younger Set, New York, N.Y.: D. Appleton & Company, →OCLC:
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A few types of molecules get sensed by receptors on the tongue. Protons coming off of acids ping receptors for "sour." Sugars get received as "sweet." Bitter, salty, and the proteinaceous flavor umami all set off their own neural cascades.2018 May 16, Adam Rogers, “The Fundamental Nihilism of Yanny vs. Laurel”, in Wired:
2
Harsh, piercing, acerbic or stinging.
It was at the end of February, […] when the world was cold, and a bitter wind howled down the moors […].1999, Neil Gaiman, Stardust, p.31 (Perennial paperback edition)
3
Hateful or hostile.
They're bitter enemies.
Tottenham have not won in the Premier League at Emirates Stadium for 12 years, with Arsenal losing just one of their last 29 home league games against their bitter rivals.2022 October 1, Phil McNulty, “Arsenal 3-1 Tottenham: Gunners show identity & direction in outstanding derby win”, in BBC Sport:
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He inveighed against the folly of making oneself liable for the debts of others; vented many bitter execrations against the brother; and concluded with wishing something could be done for the unfortunate family.1749, Henry Fielding, The History of Tom Jones, a Foundling, volume (please specify |volume=I to VI), London: A[ndrew] Millar, […], →OCLC:
Husbands, love your wives, and be not bitter against them.1611, The Holy Bible, […] (King James Version), London: […] Robert Barker, […], →OCLC, Colossians 3:19:
Etymology From Middle English bitter, bittre, from Old English bitter, biter (“bitter”), from Proto-West Germanic *bitr, from Proto-Germanic *bitraz (“bitter”), equivalent to bite + -er (agent noun suffix) used attributively. Cognate with Saterland Frisian, West Frisian, Low German, Danish, Dutch, German, Norwegian Bokmål, Norwegian Nynorsk, and Swedish bitter, Icelandic bitur (all meaning “bitter”).
1
To an intense or severe degree; bitterly.
A dynamic personality in the outfit, he met his death in the bitter-fought engagements in Venafro.2012, Mir Bahmanyar, Darby's Rangers 1942–45, page 26:
After that bitter-spoken warning, talk ceased outside […].2022, Ernest Haycox, The Complete Novels: Son of the West, Saddle and Ride, Action by Night, The Silver Desert, Bugles in the Afternoon:
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The dream of it ached, bitter and sharp, for that was all it was.2022, Bec McMaster, Flames and Fated Mates: Six Seductive Fantasy Romance Novels:
Etymology From Middle English bitter, bittre, from Old English bitter, biter (“bitter”), from Proto-West Germanic *bitr, from Proto-Germanic *bitraz (“bitter”), equivalent to bite + -er (agent noun suffix) used attributively. Cognate with Saterland Frisian, West Frisian, Low German, Danish, Dutch, German, Norwegian Bokmål, Norwegian Nynorsk, and Swedish bitter, Icelandic bitur (all meaning “bitter”).
1
A liquid or powder, made from bitter herbs, used in mixed drinks or as a tonic.
Usually in the plural bitters
Thus I begin: "All is not gold that glitters, "Pleasure seems sweet, but proves a glass of bitters.1773, Oliver Goldsmith, She Stoops to Conquer:
Etymology From Middle English bitter, bittre, from Old English bitter, biter (“bitter”), from Proto-West Germanic *bitr, from Proto-Germanic *bitraz (“bitter”), equivalent to bite + -er (agent noun suffix) used attributively. Cognate with Saterland Frisian, West Frisian, Low German, Danish, Dutch, German, Norwegian Bokmål, Norwegian Nynorsk, and Swedish bitter, Icelandic bitur (all meaning “bitter”).
bittered with the hop1766, John Wilkinson, Tutamen Nauticum:
bitter
noun
Etymology From bit + -er.
1
Computing, Engineering, Mathematics, Natural sciences, Physical sciences, SciencesIn compounds, Informal A hardware system whose architecture is based around units of the specified number of bits (binary digits).
However, 16-bitters are far more expensive than the 8-bit variety. And, unfortunately, have only a handful of business applications software packages that really take advantage of them.1983, Computerworld, volume 17, number 49, page 21:
The company believes that the 32-bit market will almost equal that of 16-bitters by the end of the decade. Chip maker Zilog Inc., not a major player in the 16-bit arena, is even more bullish about 32-bitters as it readies its own version for market.1984, Electronic Business, volume 10, page 154: