ROGET THESAURUS
		            
		            		                Sourness
		                		                    		                         N
		                        		                            		                                sourness, acid, acidity, low pH, acetous fermentation, lactic fermentation, vinegar, verjuice, crab, alum, acetic acid, lactic acid, sour, acid, acidulous, acidulated, tart, crabbed, acetous, acetose, acerb, acetic, sour as vinegar, 
sourish, acescent, subacid, styptic, hard, rough, sour as a lemon, (4) Odor.