underivative
1. [ adjective ] not derivative or imitative
Examples:

"a natural underivative poet"

Related terms: original
Similar spelling:   underactive
  underived
  undertide
  underprivileged
  underpart
  undercoat
  underestimate
  undertake
  underskirt
  undershirt
  underpants
  under_that
  underrate
  undervaluation
  undermentioned
  underframe
  underweight
  understate
  undertaker
  undertaking
  undervalue
  underwater
  underrating
  underevaluation
  undersealed
  undernourish
  undermanned
  understated
  underhanded
  undercover
  undercoated
  undercharge
  under_attack