The best replacement for uniform is normal distribution.

The best alternatives to uniform are rated as following:
★★★★★  normal distribution
★★  dress code
★★  no uniform
★★  an uniform
★  casual
★  free dress
★  unimodal
★  non uniform
★  no school uniform
★  nonuniform motion
★  varying
★  constant speed
  uniform
  non-uniform
  marine uniform
  army uniform
  dress blues
  acu
  cost of regular clothes
  attribute glsl
  civilian
  school dress code

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

Other search terms related to uniform and their ratings are:
★★★★★ insignia
★★★★ jump boots
You have in mind a companion for uniform and it is not yet here? Propose!



Google Trends

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uniform
normal distribution
dress code