The best replacement for believers is non believers.

The best alternatives to believers are rated as following:
★★★★★  non believers
★★★★  unbelievers
★★★  disciples
★★  infant baptism
★★  non-believers
★★  atheists
★★  believers
★★  skeptics
★★  non believers islam
★  christians
  naipaul
  nonbelievers

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

Other search terms related to believers and their ratings are:
★★★★★ non believers
★ other believers
You have in mind a companion for believers and it is not yet here? Propose!



Google Trends

Scale is based on the average worldwide traffic of believers in all years. Click on graph for more.
believers
non believers
unbelievers