Meaning of the Sanskrit Word: nirmalam

  nirmalam—purified    Bg 14.16
  nirmalam—without material contamination.    SB 7.7.15
  nirmalam—crystal clear    SB 8.2.25
  nirmalam—uncontaminated by the effects of speculative philosophical research or fruitive activity    Madhya 19.170

Can't find any compound Sanskrit words containing nirmalam.