Definition of "bittersweet"

The dark green mooncake is loaded with matcha-infused salted egg yolk custard, which gives a bittersweet taste.

2016 August 21, Kenneth Goh, “Roll over, chocolate lava cakes — here come lava mooncakes”, in The Straits Times

[…] sensations of this kind, however delicious, are, at their first recognition, of a very tumultuous nature, and have very little of the opiate in them. They were, moreover, in the present case, embittered with certain circumstances, which being mixed with sweeter ingredients, tended altogether to compose a draught that might be termed bitter-sweet […]

1749, Henry Fielding, chapter III, in The History of Tom Jones, a Foundling, volumes (please specify |volume=I to VI), London: A[ndrew] Millar, […]

Her eyes still shone upon the ground, and still she prolonged the bittersweet delight at seeing this humiliation of both soul and body by asking the one question whose reply would complete her sad success.

1863, Louisa M[ay] Alcott, Pauline's Passion and Punishment‎

He sat beside the busy street,There, where he last had seen her face:And thronging memories, bitter-sweet,Seemed yet to haunt the ancient place:

1898, Lewis Carroll, “Three Sunsets”, in Three Sunsets and Other Poems‎

While the final festivities were bittersweet, David and Lisa insisted on a party rather than a funeral.

2020 January 16, Diana Hubbell, “Bittersweet Berlin goodbye as Clärchens Ballhaus faces uncertain future”, in The Guardian‎

The public has complicated feelings about our decision to end this trial before it ever began, and that’s OK. It’s bittersweet for us, too.

2023 April 21, John Poulos, “Dominion’s C.E.O.: Why We Settled the Lawsuit Against Fox News”, in The New York Times‎

Bitter ſweete bringeth foorth wooddie ſtalks as doth the Vine, parted into many ſlender creeping braunches, by which it climeth and taketh holde of hedges and ſhrubbes next vnto it. […] Bitter ſweet doth grow in moiſt places about ditches, riuers, and hedges, almoſt euery where.

1597, John Gerarde [i.e., John Gerard], “Of Bitter Sweete, or Woode Nightshade”, in The Herball or Generall Historie of Plantes. […], London: […] Edm[und] Bollifant, for Bonham and Iohn Norton, book II, pages 278–279

I had once before visited these three villages, Skedans, Tanoo and Cumshewa. The bitter-sweet of their overwhelming loneliness created a longing to return to them.

1941, Emily Carr, chapter 18, in Klee Wyck‎

Over by the creek-bed scarlet-flamed sumac shouldered the silver-green of the willows, and orange-colored bittersweet crept through the tangle of wild plums.

1935, Bess Streeter Aldrich, chapter 43, in Spring Came on Forever‎

"They had a good crop of bitter-sweets, they couldn’t grind them all"—nodding towards an orchard where some heaps of apples had been left lying ever since the ingathering.

1886 May – 1887 April, Thomas Hardy, chapter VI, in The Woodlanders […], volume I, London, New York, N.Y.: Macmillan and Co., published 1887, page 99