bittersweet
adjective

1. being at once bitter and sweet especially : pleasant but including or marked by elements of suffering or regret a bittersweet ballad bittersweet memories

2. of or relating to a prepared chocolate containing little sugar bittersweet chocolate chips

3. botany (noun)
a : a poisonous Eurasian woody vine (Solanum dulcamara) of the nightshade family that has purple flowers and oval reddish berries
b : a North American poisonous woody vine (Celastrus scandens) of the staff-tree family having clusters of small greenish flowers succeeded by yellow capsules

Merriam-Webster

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ORIGIN

It's easy to imagine the contrast of tastes described by the word "bittersweet". The earliest use of the term, from the 14th century, referred to a type of apple, alternatively described as "sweet-bitter".

When referring to emotions, we emphasize the positive aspect, but feel an element of unhappiness nonetheless.

Here are some more expressions with bitter or sweet that might suit your taste:

- take the bitter with the sweet = accept the negative along with the positive (It's a great offer, but I'll have to relocate. I'll just have to take the bitter with the sweet)

- a bitter pill to swallow = accept an unpleasant fact (Discovering that his ex-wife would be his new boss was a bitter pill for Roger to swallow)

- the bitter end= an unhappy conclusion (Mark stayed with the company to the bitter end)

- a sweet deal = a very good business arrangement (I'm happy to say that we got a sweet deal on this order)

- short and sweet = compact and quick (We don't have much time, so please keep your message short and sweet)

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SYNONYMS

both happy and sad, have mixed feelings, have mixed emotions, ambivalent; semisweet (dark chocolate)

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Find an opportunity to SMUGGLE OWAD into a conversation:

"Leaving a good job to start her own business has been BITTERSWEET."