acidulous [uh-sij-uh-luhs]
adjective:
1 slightly sour
2 sharp; caustic
Examples:
From time to time papa tried his hand at making risotto, preferring those with acidulous fruit - strawberries, peaches, grapes - and even made some with champagne. (Francesco Bianchini, Of Risotto and Soufflé, Classic Chicago Magazine, June 2022)
If Cope lacks the acidulous wit that seasons Byron’s best, his narrative is marked by an absence of the condescension that occasionally colours the latter’s work. (Shoumojit Banerjee, Rapture on the Eurasian steppe, The Hindu, May 2016)
They saluted a journalist, a constant scribbler, an acidulous wordsmith who specialised in counterintuitive destruction. Yet, it turned out, even his victims seemed to love him: for his turn of phrase and twist of mind.(Peter Preston, Fond farewell to the acidulous Mr Gill, The Guardian, December 2016)
Tom Ford's newest intoxicating fragrance pushes lavender to a new extreme. Sourced from Provence, the purple plant is balanced out by acidulous Italian bergamot and spicy-sweet tonka bean. (Lauren Valenti, The 7 New Fragrances to Know This Summer, Vogue, June 2019)
He had to be careful, for he was very sensitive to ridicule; and the acidulous humour with which the American treated the Church of England disconcerted him. (W Somerset Maugham, Of Human Bondage)
Origin:
'sub-acidic, slightly sour' (of cream of tartar, oranges, etc.), 1766, also used figuratively for 'sour-tempered;' from Latin acidulus 'slightly sour,' a diminutive of acidus (Online Etymology Dictionary)