Words similar to sour

Example sentences for: sour

How can you use “sour” in a sentence? Here are some example sentences to help you improve your vocabulary:

It is said that the human tongue naturally distinguishes among four types of tastes: sweet, sour, salty, and bitter.
at what point exactly do negotiations for reparation payments to concentration-camp forced-labor slaves "turn" sour?
Without Melfi, the psychiatrist, around to draw out Tony's human side, he and his buddies just seem angry and sour.
If it is more than a passing acquaintance, you might want to risk the person's embarrassment in order to be helpful, with a remark something like "I hope you don't take offense, but I feel sure you would want to know that, somehow, your breath has turned sour," or "your lunch is lingering," or whatever you are comfortable saying.
Sour tastants are acids, often found in spoiled or unripe food.