Rancid vs. Sour — What's the Difference?

Having the disagreeable odor or taste of decomposing oils or fats; rank.

Having a taste characteristic of that produced by acids; sharp, tart, or tangy.

Repugnant; nasty

Made acid or rancid by fermentation.

Rank in taste or smell.

Having the characteristics of fermentation or rancidity; tasting or smelling of decay.

Offensive.

Bad-tempered and morose; peevish

Having a rank smell or taste, from chemical change or decomposition; musty; as, rancid oil or butter.

Displeased with something one formerly admired or liked; disenchanted

Used of decomposing oils or fats;

Not measuring up to the expected or usual ability or quality; bad

Smelling of fermentation or staleness

Not having the correct or properly produced pitch

Of or relating to excessively acid soil that is damaging to crops.

Containing excessive levels of sulfur compounds, carbon dioxide, or both. Used of oil and natural gas.

Containing excessive levels of peroxides. Used of gasoline.

The sensation of sour taste, one of the four primary tastes.

Something sour.

A mixed drink made especially with whiskey, lemon or lime juice, sugar, and sometimes soda water.

To make or become sour.

To make or become disagreeable, disillusioned, or disenchanted.

Having an acidic, sharp or tangy taste.

Made rancid by fermentation, etc.

Tasting or smelling rancid.

Peevish or bad-tempered.

Excessively acidic and thus infertile.

Containing excess sulfur.

Unfortunate or unfavorable.

(music) Off-pitch, out of tune.

The sensation of a sour taste.

A drink made with whiskey, lemon or lime juice and sugar.

(by extension) Any cocktail containing lemon or lime juice.

A sour or acid substance; whatever produces a painful effect.

The acidic solution used in souring fabric.

(transitive) To make sour.

(intransitive) To become sour.

(transitive) To spoil or mar; to make disenchanted.

(intransitive) To become disenchanted.

(transitive) To make (soil) cold and unproductive.

To macerate (lime) and render it fit for plaster or mortar.

(transitive) To process (fabric) after bleaching, using hydrochloric acid or sulphuric acid to wash out the lime.

Having an acid or sharp, biting taste, like vinegar, and the juices of most unripe fruits; acid; tart.

Changed, as by keeping, so as to be acid, rancid, or musty, turned.

Disagreeable; unpleasant; hence; cross; crabbed; peevish; morose; as, a man of a sour temper; a sour reply.

Afflictive; painful.

Cold and unproductive; as, sour land; a sour marsh.

A sour or acid substance; whatever produces a painful effect.

To cause to become sour; to cause to turn from sweet to sour; as, exposure to the air sours many substances.

To make cold and unproductive, as soil.

To make unhappy, uneasy, or less agreeable.

To cause or permit to become harsh or unkindly.

To macerate, and render fit for plaster or mortar; as, to sour lime for business purposes.

To become sour; to turn from sweet to sour; as, milk soon sours in hot weather; a kind temper sometimes sours in adversity.

A cocktail made of a liquor (especially whiskey or gin) mixed with lemon or lime juice and sugar

The taste experience when vinegar or lemon juice is taken into the mouth

The property of being acidic

Go sour or spoil;

Make sour or more sour

Smelling of fermentation or staleness

Having a sharp biting taste

One of the four basic taste sensations; like the taste of vinegar or lemons

In an unpalatable state;

Inaccurate in pitch;

Showing a brooding ill humor;