Opposite of ancillary

Opposite of ancillary word list. Here are a variety of words whose meaning is nearly the opposite of ancillary.

  • adverse
  • alien
  • counteractive
  • impertinent
  • inappropriate
  • inoperative
  • insubservient
  • irrelevant
  • obstructive
  • preventive
  • redundant
  • unconducive

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