If a person, a company, or even a storm is amoral, it does not live by moral rules at all — not “good,” not “bad,” just outside that game. This is not the same as immoral, though native speakers mix the two all the time, even in newspapers. Immoral is when you are supposed to know right from wrong and you break the rule. Amoral is when those rules are not in the picture. A cat that kills a bird is not wicked in the human sense; people call that amoral. A business that only asks “is it legal and profitable?” and never “is it decent?” is amoral in a colder, criticising way. Scientists sometimes say nature is amoral: it is not kind and not cruel. The word is fairly formal. At the dinner table you are more likely to hear “they have no morals” or “they don’t care what’s right,” which is looser and often sounds more like immoral. Though actually, philosophers argue about whether a human can truly be amoral, or whether everyone has some code. For your English, keep the simple contrast: immoral = against morals; amoral = without them.