used as a way of emphasizing sth negative or unpleasant
There was suspicion and even downright hatred between them.
他们之间相互怀疑甚至极度仇恨。
adverb
She couldn’t think of anything to say that wasn’t downright rude.
她除了破口大骂之外再也说不出什么。
It’s not just stupid—it’s downright dangerous.
这岂止是愚蠢，简直是危险。