This word is acceptable for play in the US & UK dictionaries that are being used in the following games:

• Lexulous
• Wordscraper
• Wordosaur

adj. That has become, or has been made sour.

v. Simple past tense and past participle of sour.

adj. having turned bad

"The album's release was postponed many times over the next two years as relations between the rappers and their new label soured, culminating in a lawsuit (later settled out of court) in which the Clipse sought to leave Jive."

tart    sourish    lemony    astringent    subacid    acerbic    tangy    vinegarish    acidic    acidulent   

sweeten   

soured    souring    sourness    sours   

turn    change state    change taste   

ill-tempered    rough    disagreeable    acrimonious    embitter    sour orange    sour bath    sour pishamin    sour grapes    sour dough   

soured    souring   

crabbed    acetose    tart    acrimonious    sharp    acid    peevish    acetous    harsh    currish   

Auer    Bower    Gower    Power    bour    bower    cower    dauer    devour    dour   

bitter    acrid    unpleasant    stale    harsh    nasty    sullen    oily    sarcastic    delicious