one can simply not describe 1D with just 1 word, that's what I amor about them. There's so much to them with their music, looks, lives, and personalities that it is impossible to describe using just one word; for all the descriptions people posted above me are true, they are all these things, and many more. That's what makes 1D special; they're not just some typical boyband that has catchy music, they help people, help write their own music, have there own say in how to live their lives, and most of all they try very hard to connect with their fans. So, to describe 1D with just one word is impossible, it just cannot be done, this is why we amor them.
I can't describe them in ONE word, I wanted to say Amazing, but that's taken, so, I'll say 'fit' in the proper English way. BTW: fit in the UK English means hot, so yeah, keep the bad comments away from this answer
there is no words i have to go through the whole dictionary to find the right word for them 'Perfection' they are- there are no words i amor them hilarious amazing talented gorgeous idk just 'Perfection'