Home › Words › O › oversouroversouroversour means overly or excessively sour; too sour.EtymologyFrom Middle English oversour, equivalent to over- + sour.adjOverly or excessively sour; too sour.e.g.“Let milk become oversour and observe odors of decomposition.” — 1903, Monthly Bulletin, volumes 3-4, page 24:verbTo become too sour.Definitions & examples from Wiktionary (CC BY-SA 3.0).Words closest in meaningBy meaning, not spelling — each word's AI semantic fingerprint, nearest first.oversweetened 68% match — Excessively sweetened. vs oversour →sourful 68% match — Characterised by sourness (all senses) vs oversour →sourish 66% match — Somewhat sour. vs oversour →oversugary 66% match — Excessively sugary. vs oversour →oversugared 65% match — Excessively sugared. vs oversour →besour 65% match — To make sour. vs oversour →oversaucy 65% match — Excessively saucy. vs oversour →sourer 63% match — That which makes something sour. vs oversour →