I really like that discoloured-uncoloured I threw in above. Because they have colour! They have faded some, or changed because of exposure to dirt, or age, or a faulty computer setting. Doesn't mean it's bad or less; just means it sticks out in a crowd of "coloured" thingies.

/Dis/ to me means mostly /with a twist/. I have a disability, I am disabled: that means I don't have an ability you have, and also have an ability you don't have. So I'm not /unable/.
Dystonia: my muscle tone has a twist. I bet I can slap you really hard. I can also play the piano on elbow- and shoulder movements alone. And if you ever broke hand, come find me and I'll teach you how to tie your shoe-laces one-handed. Atonia: no muscle tone at all.