It's 'arbitrarily', but no, it sounds a bit odd that way, since arbitrariness and order are somewhat antonymous. How about: 'No, I just put them in arbitrarily .
New words, one handy idiom, and a 2-minute quiz — delivered to your inbox to keep your streak alive.
PeaceblinkfriendI just put them in order abitrarily.I don't think your putting them in order was done arbitrarily. I think you put them in arbitrary order.