Definition & Meaning of "sour"

deteriorated or gone bad, often with an acidic or unpleasant quality

(of smell) unpleasantly sharp, acidic, or stale

exhibiting a mood or demeanor marked by irritation or displeasure

off-key or inaccurate in pitch

falling short of the usual or expected standard

referring to soil that has a low pH level, making it acidic and potentially less suitable for growing certain types of plants

refering to petroleum or natural gas that contains a significant amount of sulfur compounds, making it more challenging to process and refine

a cocktail made with a base spirit, citrus juice, and sweetener, typically served over ice

to make something taste tangy or tart by adding acid or letting it ferment

to cause something to become negative, unpleasant, or less favorable

to gradually turn unpleasant, often due to a change in circumstances or emotions