The best replacement for really is very.

The best alternatives to really are rated as following:
★★★★★  very
★★★★  real
★  actually
★  realy
  i really would
  really is
  really
  quite
  not really
  oh really
  truly

Your alternative for really is not listed? Suggest!
Speaking about really, one probably shouldn't forget about seth and amy snl.

Other search terms related to really and their ratings are:
★★★★★ seth and amy snl
You have in mind a companion for really and it is not yet here? Propose!



Google Trends

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really
very
real