I like "important".
As for why I came to like it, I learned this word in middle school but I'd always switch out the "m" in "important" with "n" in my mind, and since additionally I missed it on lots of tests without ever noticing the mistake, I wrote "important" over and over to fill one whole notebook page in order to remember it. lol
And since then I've made sure not to mess it up! lol
I was happy that I started to not miss it, and so came to like "important". lol