The best replacement for fail is win.

The best alternatives to fail are rated as following:
★★★★★  win
★★★  failed
★★★  withdraw
★★★  pass
★★★  succeed
★★  drop a class
★★  fell
★★  letter grade
★★  fail
★★  reject null hypothesis
★  epic fail
★  fast
★  success
★  taking back sunday
★  pass formula in excel
★  fails
★  falter
★  flop
★  owned
★  fab
★  raise
  fianna gael
  letter grades
  fail to plan
  epic failure
  raise ruby
  grades
  fine gael
  taking back
  tbs
  blackhole
  grading system

Your alternative for fail is not listed? Suggest!
Speaking about fail, one probably shouldn't forget about honor.

Other search terms related to fail and their ratings are:
★★★★★ honor
★★★★ 75 questions on nclex
★ trying
★ steve jobs
You have in mind a companion for fail and it is not yet here? Propose!



Google Trends

Scale is based on the average worldwide traffic of fail in all years. Click on graph for more.
fail
win
failed