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Added 10 October 2026

acidulous

/əˈsɪdjʊləs/ adjective

In Latin: acidulus Wiktionary

adjective Definition from WordNet 3.1, Princeton University. Pronunciation from Wiktionary, via Kaikki.org. More about acidulous at Wordnik → Where our words come from →

Being sour to the taste.

Origin

Learned borrowing from Latin acidulus (“sourish, acidulous”), diminutive of acidus (“sour, acid”). See acid. By surface analysis, acid + -ule + -ous.

From Wiktionary, via Kaikki.org (CC BY-SA)

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