The antonym of friendly would be meanly. It would take the same "-ly" format; so, therefore, mean would not be the antonym of friendly.The opposite word of friendly is unfriendly, hostile.unfriendlyadversarialhostileunfriendly! :-)
format mean style
Sure you do not mean 420 friendly?
mock friendly - pretending to be friendly
It means gay friendly
crystal meth friendly
Times new roman 12 point font, Decretive header
format for formal letter
Go to media-convert.com and you can convert your video into a YouTube friendly format.
kind or sweet could probably mean the same thing as friendly
she is super friendly. she is so nice NOT MEAN
friendly