1. somewhat sour; having a slightly acidic or tart taste

Examples

• The apples had a sourish flavor that wasn’t quite ripe.
• She made a face at the sourish taste of the yogurt.
• The wine had a sourish aftertaste that lingered.
• The sourish berries needed more sugar to be palatable.
• His sourish expression showed his disapproval.
• The milk had gone slightly sourish in the heat.